We stayed 3 nights at Yolanda's apartment. We were welcomed by Just who made it easy to settle down (this is more of a serviced apartment, not someone's flat). The location is great, very close to metro station Paral.lel and close to a very lively street full of pinchos bars. Wifi worked fine, On the down side it can get noisy at night, not just from the street but rather from upstairs neighbors - if you are a light sleeper, bring your ear plugs.