Overall, I love Athlytic and the idea behind it. Having used a whoop for a couple of years, my hope was that this would be a like for like replacement as I moved to the Apple Watch Ultra. However, I found that its sense of my recovery levels, and therefore recommendation for intensity of training is off quite often. I might have a terrible night sleep, and wake up, feeling totally wrecked, and it will tell me I’m highly recovered. I might have a good night sleep, strong, HRV, and it tells me I’m overtrained when I wasn’t intense the day before. It may know something, I don’t, of course, but I didn’t see this disconnect with my Whoop, so I’m skeptical. I think with more time, and more data, it will get better. I’m willing to give it a try. Athlytic is nice, is very reasonable, so I’m hopeful for the future. For right now though, it’s hard to give more than three stars given this issue.