It is 4 stars.
This review is done mostly based on the commentaries of a senior couple. They love eating Peking ducks. They have eaten numerous Peking ducks in their long lives (they are in their 80's) in Toronto and in China. Their opinions on Peking ducks are the most trustworthy among my personal friends. They said the Peking ducks were good here. Their comments are as follows:
1) The skin slices were the thinnest they have had in Toronto
2) There was next to no fat on the skin slices
3) The flour wraps were very thin yet they didn't break
4) The sauces were good
The one star deduction was based on my opinions:
1) The meat was bland. If not for the sauces, the meat slices had no flavour
2) The pricing model charges extra for additional green onions and sauces. While it is customary to charge extra for additional wraps, most restaurants in Toronto don't charge extra for sauces and green onions. Peking duck is a dish that has sufficient profit margin to provide these.