If you're a U of T student at the St. George campus, are covered under UHIP, and you need a doctor, chances are you'll find yourself here at some point. I'm new to Canada and this is my first experience with the Canadian health care system (if this counts as such), and I have to say that it's basically what I expected. I needed some prescriptions refilled and was given a 15 minute appointment with Dr. Lengkov. Though the experience was fairly rushed, she was very knowledgeable and thorough. Plus, I didn't have to wait too long at 1pm on a Friday, which was nice (I expected to be there for hours).
Definitely make an appointment, though - it seems Walk-in availabilities are very scarce.