Love the goggles! They lasted me an entire year, which is far longer than other goggles have lasted for me. Just bought my second pair. They take some adjustment and I'm sometimes getting a little water in when I quickly return my head to neutral position after a breath on one side. I think I can adjust them and fix it. The app is not so intuitive--I couldn't figure out how to remeasure my face between my last pair over a year ago and this one. Maybe my face hasn't changed in any way relevant to goggle-measurement, but I was ready to try a second scan to see. Also, the process of measuring payment with scans is not seamless--if you're logging in through the app, it's hard to get to payment, except by paying on the web site and using a pre-loaded scan. Whatever--It's worth going through the difficulty of buying the goggles to get them. Assuming I can get my current pair to work like the last ones, they are high quality, long-lasting, and require a lower tension than my old goggles.