This sort of thing would be great if it was cloned or expanded to cover UK universities. There have been an increasing number of really ropey institutions and courses popping up over recent years and many students don't realise they're in such a university (get 'em in, take the fees, put them through the least rigorous process possible, print them a degree in something like "e-Music" or "Film, TV and Radio Studies") until they're quite heavily invested.
A site where people could frankly and honestly say "this course was worth doing for me because" or "I feel that I made the wrong decision coming to this uni because" would be brilliant at a time when uni education here is becoming more expensive and people are starting to have second thoughts over whether it's worthwhile. At present, the most popular such site in Britain is a simple vBulletin forum. There's a gap there if someone wants to run with it!