Samuel's apartment is a great base of operations for exploring Montreal. It's right off St. Denis and a stone's throw away from Beri-Uqam Metro stop.
The apartment is very clean and quiet (especially considering its location). It should be noted that it is up three flights of stairs, with no elevator, so if you have a physical liability that prevents you from climbing with your suitcase, take that into consideration. Also, if you were to come in warm weather with bicycles, parking them securely could be tricky. To off load, you need to temporarily park on a quasi pedestrian walkway that is also used by cars, but is not very busy. Paid, secure, underground parking is right across the street.
Check in was easy. Samuel provides great instructions. You have to access the front door key via a lock box a few doors down from the entrance and the apartment key code is somewhat elaborate but easy.
Overall, a great location and value and we'd gladly stay again.