The tea and service is good. from the time Chatime first opened in Toronto to now, thier drinks have always been made with the same tastes. Considering the number of people that come here, the service is quite quick which is appreciated.
Be warned though that the lines are brutal at times (it's calmed down now). And when they are, the structure of the restaurant is not made well to consider such a rush so it gets pretty hot waiting and sometimes frustrating. Good though when it does get busy, I find people never bud (from my experience at least).
There is a number of seats, mostly smaller tables, so if it's busy or you are a big group it'll be hard to get a seat.