We celebrated a bachelorette weekend at Yvonne's house. It was great. Enough room for 10 and walking distance to many restaurants and bars, and a 20 min uber to dance clubs. The beds are super comfortable and Yvonne provides everything you need (towels, shampoo, dishes, etc). Parking can be tricky - I paid for a few hours parking in front of the house, then it is free over night. The next day I parked on a side street for free and moved it back in front of the house overnight.
Overall, if you are a large group looking for a home base in Toronto, book this place!