When I review a class, I always try to give praise. Any evaluation should start with praise and end with praise. Include some constructive criticism if necessary. If students just complain in reviews, it could become harder to get good instructors. All of the classes I have taken so far have been great. I learn a lot from each class. There was one class I took that was a really good class, but much shorter than any of the others I have taken. I did contact Craftsy about it, as I felt that I did not get a good value for the money they charged. If a class is short, then the price should be less. They gave me a free class. I have been very pleased with all the Craftsy classes I have taken.