I like the fit and appearance of the band and have no issues with the arm band heart monitor. The app layout is nice and battery life is satisfactory. I enjoy looking at my health metrics, but I'm a little disappointed in the day time data collection, which is sparse to nonexistent for some metrics. I understand the limitation of red light, but I get few HR and HRV readings during the day and no breathing rate and SPO2. I'm also a little disappointed in the "Insights" feature. Knowing where I stand when compared to the population using Biostrap is nice, but it would be more beneficial to know things that may affect my metrics so I can make changes. Perhaps additional questions could be added to the sleep survey that can be worked into the insights.