I ordered singstar a month ago for my daughters 12th birthday and I can honestly say it has been used every day since then and not by just my daughter and her friends but by the rest of the family as well. Ages are 12, 21, 30, 31, 38 & 53 there's not many games out there that can entertain such a wide spread.
Good points from a mums point of view.
The songs cover something for everyone and unless you have the voice of a nightingale you won't get bored in a hurry.
The mic's are very good quality.
Theres not a gun or blood splatter in sight.
Theres a good chance that you may finally be able to get a higher score than your kids.