I stayed at Mathew's place for about a week and it was excellent!
The up-stairs is where the 3 rooms are where they host airbnb guests that share a full bathroom. During my stay, there was only one other person so it felt very private. The room is large, comfortable and with plenty of light. I also used the kitchen quite a bit and both Mathew and his wife were really nice and accommodating. Highly recommend it!
Thanks again, Mathew!