Our stay at Irina's place was excellent. She was very quick to reply to messages in advance of the trip and during our stay. Check in was effortless. The apartment was exactly as described/as represented in the photos. Location was perfect for us, as we were attending a wedding at the Royal Conservatory which was only a 10 minute walk away. The airbnb was also close to a TTC station (St. George), a ~5-7 minute walk.
The apartment was a perfect size for the two of us, but I would be concerned that any more than 3 would be a really tight fit (there is a futon/pullout but it is barely larger than a twin).