I've had my Oura ring for about 4 months and thus far it has exceeded expectations. I was already familiar with the ring, as close family members have one, but I still did a ton of research before making the plunge. After all, it is a high investment ($400+subscription) and high commitment (wearing a new piece of 'jewelry' 24x7 moving forward) for something some people say is obvious (um, I don't need a score to tell me I slept poorly last night). But thus far, I've really enjoyed all the stats, and love the look of it. All was good until my ring suddenly stopped working. I spent some time going through all the recommended resets and troubleshooting, to no avail. Finally wrote Oura and to their credit, they diagnosed it and said they would send out a new ring, and it got shipped to me (from the Netherlands!) and I was back tracking in less than 7 days. Hopefully that will be the only hiccup, but so far I'm really loving it.