I rated this lounge 4 stars because I am comparing it to the Maple Leaf lounge at other Canadian airports and find this one seems to be better for the most part. There is generally more selection of both foods and drinks. The problem with some of these are they don't seem to have the staff to keep everything full and presentable looking. Since this lounge is bigger they seem to have more staff and are able to keep up.
Relaxing enough environment with adequate area to do work, read, or look at planes out the windows...