We spent a week at Joanne's place at Place Des Arts and couldn't have been more pleased.
The location was perfect (no more than a fifteen minute walk to almost every cool part of town, and a short and easy metro ride to others) and the accommodations were beautiful and comfortable. It's a spacious studio apartment that looks and feels a lot like a high end boutique hotel. Hardwood floors, really nice art on the walls, all amenities, modern appliances including washer, dryer and dishwasher. Everything fully stocked, and ready to go.
We were especially impressed by Joanne's warmth, friendliness and attention to every detail.
It's necessary to add here that if you're particularly fastidious about cleanliness (which we are) you'll REALLY like this place. We will want to stay at Joanne's place every time we visit Montreal!