Suitable only for a night's sleep. Wouldn't recommend it for a long stay. We stayed for 10 days and our experience was ok.
The place was smaller than expected, part of a family flat. The room's door didn't lock but we didn't feel unsafe in general. It wasn't very good in terms of sound proofing but it was very well heated, something we really needed the days we stayed there.
Although they mention the kitchen as an amenity, there was no access to the kitchen. There was just a kettle with a couple of mugs in the room.
The room wasn't very clean when we got in (found some hair on the floor and in the shower) but it got cleaned and changed linen twice during our stay, although the second one was a night before our checkout - which was not very useful.
Juan was very friendly and very responsive as a host. He responded to our requests immediately and provided us with everything we needed. He was also very kind to our request to checkout a bit later.