we had a great stay all in all. the room and the apartement are not big, but it's everything you need for a couple of days. the location is great, very central, a tube station nearby and a lot of interesting stuff in walking distance. there is a ton of good options to eat and drink in the area, but a lot of them are closed on weekends.
carlos is a friendly, helpful and responsive person and was a really good host.
we can definitely recommend staying with him!