This is by far my favorite place to stay in Montreal.
It is an absolutely unique and charming B&B that serves some of the best breakfast food I've ever had.
It's located two blocks off of Sainte-Catherine, so you are right next to one of the larger touristy areas without having to worry about being kept up all night due to the drunken revelry taking place on said touristy areas.
The rooms are color themed (personally I love the white room as it has a hot tub that is at least as big as my queen-sized bed, as well as a really nice porch) and the place is crawling with art.
In addition to this, they also have free wi-fi, and the last time I went, our room actually came -with- a computer to utilize said wi-fi.
Seriously, if you are willing to spend a little more, this is absolutely one of the best B&Bs you will find anywhere. The staff is awesome, the rooms are awesome, the breakfasts are beyond reproach.
I wish I could live there.