I used to live in Kensington Market and was overwhelmed by the restaurants in such a small area. Although technically outside the market per se, John's definitely has that old market vibe. It is a very casual Italian restaurant - drinks come in tumblers, food is hearty and plentiful, decor is rough and ready. But, it is so charming and comfortable that you feel instantly feel as if you are actually just hanging at your Italian friend's place. I have been eating there for years and heartily recommend it. My first time there I saw the drummer from the Barenaked Ladies eating there with some friends (before they went huge - think the yellow cassette days). That is the kind of place it is.