My wife and I came to Montreal for a weekend and were very impressed with the Embassy Suites. When we checked in we were upgraded to a king suite, and the suite was better than our hotel back home. The carpet could have used a good deep cleaning, and the view kind of sucked, but the huge whirlpool tub and spacious everything more than made up for it.
The servers at the happy hour were also awesome. Even when we ran out of our complimentary drink tickets they were happy to get us an extra drink or two, and when I accidentally knocked my drink over, they were quick to respond with a mop in one hand and a replacement drink in the other.
The location was also pretty solid, walking distance from St. Catherine's, plateau neighborhood (a bit longer), and just about 2 blocks from the Notre-Dame basilica and the rest of old downtown.