mannheim steamroller

I was wondering who in the class has heard of the Mannheim Steamroller. I would say they are an excellent group to listen to around the holiday season but there are some people with a bad taste in music that beg to differ. On a scale from 1-10 with 1 being the lowest and 10 being the highest, rate them. If you haven't heard them, search them on youtube and then post your opinion.