My friends and I stayed at Marie-Eve's place for Osheaga and we had a wonderful time. There was plenty of room for the 6 of us, in a great location and a short walk from the metro. Marie-Eve was very responsive and willing to answer any questions we had.
There is not a lot of natural light in the apartment since it is basement-level, but that was not an issue for as we spent most of the day exploring the city. Overall, we had a great trip and I would absolutely stay here again!