First of all, this is a very calm and quiet place, as the house is situated in a leafy suburb. Yes, there is a train line passing very close to the house, but the sound barely registers, and even less so when the windows are shut. The room in its original configuration has two beds, which makes it a little tight for anyone with more that two pieces of luggage, but Matt anticipated this before I even brought it up and swapped one of the beds with a desk and chair. The fact that you can lock your door when you're out and about is also a huge plus. I will not get much into details regarding the room, because the listing is correct to the dot. You will not have unwelcome surprises here. You will be sharing the washroom and the common areas with long-term tenants, who are OK for the most part.
The TTC stop is only 300 meters away and is served by the 42-Cummer bus line. The frequency of the buses is fair in the weekdays, but the intervals get considerably longer in the weekends, so plan your trips accordingly when you're here. On average, getting to the core of downtown Toronto from here with TTC takes about an hour. The main discovery for me here was the East Don Trail, where you can walk or bike or even fish (with permit) to your heart's content.
I recommend this room for lighter-packed long-termers or all short-termers. Those who plan an extended stay should also check out the "Queen bedroom" listing of Matt's for a more spacious, comfortable stay. I also recommend Matt, without reservation, to any guest - he is most kind, gracious and helpful, and very quick to respond to queries.