I can't give a detailed review yet. I bought Tier 3 and setting up own coaching programs require quiet some learning. But I didn't expect anything different. So far I've been doing the daily coaching sessions. I'm enjoying them and I experience them as helpful. Sometime the ai doesn't fully get it, but overall I'm impressed. The UI is not the easiest but it also includes a lot of content. My advice is to start the coaching sessions and figure everything else step by step. Without having tested everything I can say that the product is in a quiet advanced stage.
I understand the limitation of the seats as they have ongoing costs for the ai use. I wish bring your own keys would be possible.