I LOVE Craftsy. I have taken 3 quilting classes and 2 sewing classes. I like the quilting more than the sewing classes. I've also signed up for a few free classes I haven't done yet, and got one free from Bernina.
Stupendous Stitching was my absolute favorite, followed by Pictorial Quilting.
The only thing I wish they would do is publish supply lists before you sign up.