Javier is an extraordinary host! The rooms are super clean and very well furnished, also the location in Lavapiés is really beautiful and has a good connection to the Metro.
But the best thing is definitely Javier himself. His English isn't perfect but communication works just fine. He is very helpful and you really get the feeling that he is trying his best to make your stay as nice as possible.
I would give my fullest recommendations anytime! :)