Bottom line - wait on Fridays and saturdays should be 45 mins for two ppl,
more for grps. The food is good, but here is the thing, if you know a place called
Sukho Thai
http://www.yelp.ca/biz/sukho-thai-toronto
and happen to go there, you'll get the same food, and would not have to wait that long either.. Apparently both Khan Sao and Sukho thai use to have the same owner.
Make sure you grab the waiter's attention yourself, and the place is a touch overpriced, and yeah overhyped too ...