I tried it a few years ago. It was expensive compared to popular alternatives, and it didn't directly integrate with my mainstream chest strap anymore. You still had to run multiple apps to collect your data, then go upload it to Strava separately. And that was it's new policy at the time; previously, it did support heart rate monitors directly, and I guess they decided "nah, that's not what we're here for." No idea what it does now because switching to a much cheaper app gave me more functionality. I think its shtick was the training feedback. So that tells you what it was trying to be, at least back then--a personal coaching app, not a comprehensive workout tracker.