Amazing! I love this app so much. My students love it, it has been such an asset to my studio. I love the endless storage and the ability to save assignments with videos, audio, documents, notes, etc and use them over and over. Such a time saver! There are a couple bugs here and there, but the app developers are SO quick to respond and help resolve issues. There are also a few more things I wish it did (send reminders for lessons, maybe help track payment) but for *practicing* and lesson plans, this app has it ALL! Free for students, I pay a subscription as a teacher, which is 100% worth it. I probably save that much money on paper alone.