I would definitely stay at Robin's apartment on Rue St Denis again. It was a very cool location and the apartment was comfortable and clean. We walked most of the places we wanted to go. My family was very happy there. It's perfect for four people. There is room on the couch for a fifth person, but there are no curtains in the main living space so you have to be okay with sleeping under the city lights. I hadn't planned on utilizing the washer and dryer, but I was glad it was there because we unexpectedly needed them. The only downside is the city parking, but just be sure to study up on Montreal parking rules before you go. Robin provides an page with parking information and translations for all the signs.