Menchies is an interesting, fun place to get some dessert. Self serve and by weight, it can get really expensive, really fast if you're not careful. If you are sensible though, the prices are reasonable.
The flavours I've tried have been great. Red Velvet, Cake Batter, Cookies 'n Cream. The addons are good as well.
I'm glad to see some frozen yogourt variety in Toronto.
P.S. Bianca A's review is pretty lousy. She liked the taste, liked the layout, wished it was around when she was younger..... but prefers Ice Cream so she gave them 2 stars. To each their own I guess.