I purchased an open studio pass primarily to take Geoffrey Keezer's "Keez to Jazz Piano" class, but I have found other valuable content on the website such as classes from other instructors and the "2 minute" classes on the Open Studio blog. Considering what I pay for weekly lessons, the Open Studio concept is a bargain. I gave it 4 stars instead of 5 for two reasons. (1) It wasn't clear to me that the content in the class book doesn't contain the transcriptions of the video class instruction. And the book contains content not in the PDFs from the videos. So I learned that I needed to buy a book and download the PDFs from each class if I wanted to review both types of content. Also, Geoffrey Keezer's class (in my view) really isn't for "all levels." I've gone through about 8 of the lessons from his class and haven't found anything that I would consider "beginner content" from my perspective of being an intermediate level student. Having said that, I give Open Studio very high marks for the clarity of the content and instruction, for the quality of the videos, and for the wide variety of topics available. The course content which I've learned in the 2 weeks I've been taking lessons have really opened my eyes and solidified my understanding of concepts, while also showing how to play things that I could hear but could not figure out how to replicate.