Quite far from Toronto but I think it was a fun experience. The service was quick and staffs are friendly. As for the environment, small but very retro, chilled and totally gave me the 70's type of feel. Even if you're a newbie, it's quite entertaining to watch all those pro roller skaters skating around while pulling off cool dance moves :) Beware, you lose track of time if you enjoy your time!
~p.s, you can bring your own roller blades which will make it cheaper at the entrance.