The mini tarts are better than the large tarts because they taste cheesier and creamier. The small tarts use an actual tart crust. The large tarts have this weird thin crust, and have this nasty apricot jelly on top of them that you have to scrape away. Both the mini tarts and the large tarts are way too expensive at $4 and $15, but with the crazy rent prices in the downtown core, it's probably what they'll need to charge to stay afloat once the hype has died down.
Uncle Tetsu's around the corner has a cheesecake which I feel is much better than these cheese tarts.