As far as a W hotel goes, this one is nothing special. Still, nothing special here is pretty darned good. They follow the whole "Whatever, Whenever" attitude and it is pretty much as you might expect it to be. They are dog-friendly as well. Of course, this being Montreal, everyone is 100% bi-lingual so if you don't know you're French, don't worry. The "club" bar on the main floor is your typical euro-trash mess so don't bother. There is a second bar on the mezzanine level that is actually a really cool and low-key place to lounge but still have that whole "see and be seen, I'm at the W" thing going on. This hotel is nice because it's located centrally to everything: Downtown, the Old City, the subway. There's (almost) nothing you can't walk to from here.
Coolest/Creepiest/Buyer Beware: Most rooms in this hotel have a very odd feature. The shower is separated from the bedroom by...a clear sheet of glass. So, if you plan on sharing a room you better be comfortable seeing your roomate naked or with leaving the room entirely until they're done. Just some useful info...