This is a great idea for a product and Larq obviously put a lot of effort into it. These are the most stylish water bottles I've ever seen--in all the various color combinations between the bottle itself and the non-slip sleeve. It's also very easy to use, with a simple and informative "user interface" of multi-color LEDs.Some things to be aware of:1) Like all UV water purifiers, you shouldn't use it with turbid water--it's essential the UV-C rays be able to penetrate the water throughout the bottle to disinfect it properly.2) The top cap, which contains the electronics, the UV emitter LED and the rechargeable Lithium battery is *not* water proof, so when you wash the bottle, you can't really submerge or wash the cap conventionally. I decided to use alcohol wipes on mine, as alcohol kills germs and evaporates quickly.3) You should always avoid directly viewing UV light, as it can damage your eyes. To that end, the cap has a safety feature such that when you remove the cap from the bottle, the power level to the UV LED is reduced. This feature, though, works off of a light sensor--if the cap is removed from the bottle, exposing the electronics to ambient light, the safety is activated. Unfortunately this approach is not the most reliable in that if you take the cap off in subdued light or darkness, the sensor won't detect the cap is exposed and the LED will continue to operate at full power.I'd rather have seen a mechanical switch or magnetic sensor which would insure that no matter the ambient conditions, the safety would always activate if the cap is removed from the bottle.I glad this unit uses a standard Micro-USB charging port compared to some similar products which use proprietary charging connectors/cables--that way it is easy to replace a lost, worn out or damaged cable. I would however, have liked to have seen included an attached protective cap which could be snapped into the USB charging port to protect it against bad weather, drops into puddles/creeks, or entry of foreign debris which can often happen during outdoor activities.I do agree with other reviewers, the rolled edge on the bottle is not a great idea, however I've had other bottles with rolled edges over the years and all I did was soak the top of the bottle in bleach for a short while when it was time to clean them. At least the cap covers the rolled edge, so the edge is not likely going to get debris in it when you are carrying the bottle around.As for the people complaining that is has a Micro-USB charging port instead of USB-C--come on, you've got to be kidding!Like most people, I've got scores of products in my home, car and gear which use Micro-USB charging ports (for example--aside from cell phones--digital cameras, e-readers, portable air compressor, handheld trail GPS, security cameras, test equipment, solar-power devices, LED flashlights, battery chargers, music players, internet radio, walkie-talkies, etc., etc.), along with dozens of Micro-USB cables that were included with them. I currently have exactly two devices with USB-C. I bought a handful of micro-USB to USB-C adapters for them.There is no advantage to using a USB-C connector on a non-data product and Micro-USB cables are cheaper and more readily available (supermarkets, gas stations, convenience stores--just about everywhere) since they are still the charging port used on the vast majority of cell phones in the entire world and will be for years to come--not everybody replaces their phone whenever a new model is released...I’ve had this water bottle for awhile now & even though I don’t use it everyday, it’s made my life so much easier & has reduced my stress levels when it comes to drinking public water. Also since I’m a college student, when I go to class I always get looks because people want to know why the top of my bottle is glowing. I also have YouTube video up my channel. Just search ronz.y on YouTube & you'll find the video.I purchased this waterbottle, because it was marketed as a hiking waterbottle that would be suitable for ensuring my water remains free of bacteria, and whatever grubbies may exist in my water. To that point it seems to work.After a month of use, the water bottle still functions most of the time but every once and a while it gives me an orange ring (not disimilar from the red ring of death for all you former XBOX 360 owners) and I have to unseal it and re-seal it a few times before it works properly. It also is supposed to run itself for a brief period of time on its own each day, and it doesn't seem to do that.After one solid fall, the water bottle top is dented and it looks vaguely like a shiny Tesla Model 3 after getting T-boned by a 2004 Honda Civic.It works to kill the bacteria, but as a hiking bottle or anything remotely outdoors it is more house cat then trail tiger.The blue version holds cold for 20 hours or so. This one does not have anywhere near the insulation. Spend the extra $20!The fact that it’s basically self cleaning is great! Especially if your a person like I was, collect water bottles like crazy, but hated doing the cleaning or replacement of the filters. It’s nice to just have one bottle that handles the job!If this was double insulated to keep water cooler longer it would be perfect. I hike and camp often and I do taste and smell the water difference. This certainly works. I would imagine if it was double insulated like Hydroflask it would be extremely expensive. I would pay however.The idea is cool but for this price of a water bottle I wish it would have been insulated. Your ice water is warm soon after.Da die Lampe mit dem UV Licht nicht an den Eingang erreicht, mufft der trotzdem innerhalb von kurzer Zeit und muss gewaschen werden. An sich ist die Flasche schön und wirkt hochwertig, aber da die ganze Idee auf der Selbstreinigung beruht und diese eben immer noch manuell am Flascheneingang durchgeführt werden muss, ist es in meinen Augen pure Abzocke und ich rate jedem davon ab, diese Flasche für diesen hohen Preis zu kaufen.The bottle look and feels very premium. However, very disappointed considering the price is 5x any normal stainless steel bottle. I only use the bottle with filtered water and yet the bottle starts to smell after just a few days of use which is no different to my £15 stainless steel bottle. In my opinion, certainly not worth the price unless you live in an area that doesn't have potable water.I had serious problems with tap water after moving to the UK from Ireland. My GP told me it was likely just a big shift in the bacteria present in tap water (even harmless bacteria impacts the balance in the gut after all) and that I'd get used to it.18 months later I still wasn't used to it. So I bought one of these to test the theory.Complete recovery in a matter of weeks. No more problems with tap water, and because my system has been dealing with the remnant bacteria in the water (the Larq makes microbes unable to replicate and therefore unable to infect, but it doesn't actually kill them), I seem to now be essentially inoculated.I'll be using it in Thailand in a few months time, and I'll update this review accordingly. My initial impression is stellar though. The technology at the heart of these bottles is potentially world changing.This product really disappointed me as was looking for this kind of bottle for a long time but the strong taste of metal left me with no other choice but to return thisAfter a few months of use the same old bottle smell returns. Have tried washing it, using bicarbonate soda to rinse, everything. Not convinced the light does anything. An expensive gimmick - definitely avoid!