My partner and I had a lovely stay here — close to tons of restaurants/shops and a short walk to the metro and several bus lines. We had no trouble finding the place or getting in (keycode access was easy and convenient) and found the unit we stayed in (#9) to be quiet even though there are a handful of other apartments on the floor and the building is near a relatively busy street.
The building doesn't have dedicated parking, but we were able to find street parking about a 10-minute walk away where we left our car for our entire three-day stay. The parking signs are a little confusing but locals graciously helped us navigate them.
We'd definitely consider staying here again next time we're in Montreal!