Mario's place is great if you are out seeing London and just need a nice clean place to sleep, shower and store your things. It's across from a tube (train) station which makes accessing London quite easy, without being in the centre. While we were staying, there was a problem with the gas - Mario was quick to arrange for us to shower in his other apartment next door and had someone out to fix it that day. Mario's Mother and Sister were quite friendly too (though we don't speak Spanish so had limited conversations).