Great location that is easily walkable to many top restaurants to try in the mile end and plateau areas; enjoy fresh bagels, and croissants each morning.
Bus 55 can easily take you downtown. Metro is also nearby for further adventures.
We stayed on the third floor in room facing the ally. It was quite, we could barely hear any of the music in the bottom floor restaurant / bar. We did have a nice view of Mount Royal. Most of the noise was coming from our own room, as the bedframe seemed loose and squeaky when climbing in and turning over in your sleep.
Overall a great time in Montreal.