I've seen a handful of episodes due to the company I keept that night. Seems like I have some deal breakers when it comes to women. Anyways, this was one of them and I really lost interest. As a whole I just found it to be boring and not worth watching. If I want to hear music then I will hear the original song by the original artist.
As for a bunch of grown adults playing students while singing and dancing, just silly. At the end of the show the girl turned to me and asked "I wonder what will happen next season", I told her the students will sing their resume out at a street corner. I'm no longer with that girl either. That reality was funnier then this fiction.