Don't be fooled by the sketchy exterior building. Upon climbing a couple flights of stairs or taking the shoddy lift up to the third floor, you'll be greeted by the hustle and bustle of a surprisingly large Chinese restaurant, home to what's likely west chinatown's best dim sum.
My grandma and I dropped by around 1pm today and the dim sum carts were in full swing. The place was packed, but they have an impressive amount of tables, so we didn't have to wait. I'm fairly certain the owner has some sort of agreement with travel agencies, because you can often see whole busloads of tourists marching up here for afternoon tea. Either that, or maybe they just have good taste.
Selection, value, and flavour are all spot on. We even got surprisingly warm service for a dim sum joint, but maybe that's because my gma's a cutie, your results may vary. Dim Sum King has awesome "early" dim sum specials too. I use quotations because the last time I checked, everything except xl and above items are $2.80 until 4pm Mon - Fri, and until 11am on weekends. Skip the other dozens of dim sum places on Spadina, this is where the peeps in the know go.