I've only been subscribed for a couple weeks but I'm already very impressed. I started with the jazz piano beginner material even though my expectation was that I would blow through it pretty quickly. I overestimated the value of my knowledge! The emphasis on listening and setting a solid basis already have my solos sounding better and my confidence growing in each step. I've supplemented with Adam's genius chord warmups because I think they're fun and touch on skills I've long wanted to improve. Before subscribing, I read some older reviews saying Open Studio had good material but didn't give a learner a clear pathway to get going. It is very clear that the folks at Open Studio took that criticism seriously. The pathway so far has been easy to follow and well thought out.