I stayed here three weeks and would happily stay longer. It is three bedrooms, all rented out, and one bathroom. It is kept perfectly clean.
HEAT The heating system is magic: every room has its own digital thermostat, controlling a perfectly silent electric air heater for that room; I feel totally spoiled now.
TRANSPORT The nearest subway stations are 15-20 minute walks away, but the 24 and 45 buses are 1 minute away and unusually frequent (24 is every 10 minutes until 9pm)
NEIGHBORHOOD Quiet, but has bakeries, grocery stores (Marche Ami, Marche Bigras), and restaurants within 5-7 minutes, and a full supermarket within 15 minutes.
NOISE I didn't have much problem with my fellow guests, though if someone talks loudly it can be heard through the walls.
KITCHEN A good size, and has the tools you need to cook with, and even oil and condiments; I'm not sure which is from Charles vs. just being left behind by past guests.
EXTRAS My room has its own door to the outside, but I don't think the key works for it, so it's more of an extra exit than a private entrance. Kleenex and abundant toilet paper are provided, though the kitchen paper towels kept running out. Charles provides washcloths as well as towels. The laundry machines are big and free, though often used during the day to clean bedsheets and towels.