I booked room 8 for a night - we reached the place at around 11pm but decided to leave to find another apartment in the end.
I personally feel that the description provided is not very specific - note that the shared washroom/showers are NOT in the same building. It is a separate building which requires you to leave your room, same for the kitchen/common area. Unfortunately this was not what we expected, and the situation was made less ideal given the temperatures were low (~10 degrees). The building where the washroom/showers were located at is also not completely enclosed, we did not use it but I imagine that we will be freezing if we did use it.
The room itself was okay given the price, except very worn down and the cupboard was falling apart. Unable to comment on the heating of the room as we did not stay the night.
Having said that, Sam was very easy to communicate with and we had no other trouble with the booking. The room is highly value for money (one of the cheapest in the area), and will make do if you are on a tight budget. However if you have slight more cash to spare, you may like to consider elsewhere for more comfort.