I highly recommend Dave's place!
We stayed here for a month, working from home nearly every day, cooking a fair bit, and occasionally visiting the University of Toronto, and it was perfect for us.
There's lots of natural light and the back bedroom makes a great office. Dave's flat is clean and quiet and feels roomy. Dave is very responsive and nice.
The location is unbeatable. Little Italy is steps away is full of great cafes, restaurants, and local grocers. There are also two supermarkets in walking distance. Dundas West and Ossington are close by for up-and-coming restaurants and hip bars. Kensington Market, the Toronto Western Hospital (TWH), and Trinity-Bellwoods park are only a 10 min walk. University of Toronto is only a 15-20 min walk away. This is a great spot for visitors to TWH or UofT. It's also a good place to explore the city from.