These guys are excellent. Courteous and helpful with quick turn around times. They service most of Toronto, and for a nominal fee they will pick up your broken machine and drop it off repaired in a day or two.
Their price point beats out other Apple certified stores in Toronto, so you will get more for your money by working with Glitch Fix. They definitely outperform the relatively expensive RiverdaleMac or BloorWestMac.
I recommend them to anyone with Mac-related ailments!