Good dim sum in Broadview & Gerrard Chinatown
Good dim sum here is a thing of the past.
The Pearl Court's limited range is edible.
The Grand recently changed hands and has a new name that I can't remember. Immediately before this, they had become pretty bad (nuked har gow anyone?). I can't comment on the current incarnation.
You can have dim sum by the water while the weather holds out (if not exactly at the prettiest spot on the harbor) at the new Cherry St T&T. They have a wide ranging repertoire, but the buzz hasn't been very good.
There's also a dim sum place at Danforth & Logan, but I have never been motivated to go in. I can't comment on the quality.