Summary: Obviously I don't like all of the songs, ("Oh God" is just awful, and there are some others), but on the whole the experience is exactly what you want. That is, if you want to be playing a bunch of fake instruments, singing off key, and have other people in the house give you strange looks.
Summary: It's just a bummer that you can do the whole game in a few days (like over the Christmas holidays when we were all home for 3 weeks!). We went through it really fast and now we have nothing left to do. The ending was kind of silly, but it summed everything up nicely.