Me and my girlfriend have spent three wonderful days at Jóse's apartment that is located in the heart of Barcelona, 10 minutes walk far from every main point of interest of the city; we traveled all around the city for two days without the need of bus/train/subway.
Jóse is a great host, always available to talk about everything and to accomodate every our request. He told us a lot about Spain and helped us with precious tips about the city too. Times are not a problem, you can go and leave at any time of the day without any restriction.
The apartment is exactly like in photos, clean with everything you need. The kitchen is not surprising but it's enough to cook. The guests's room is comfortable for two people and even if without heating, it is warm in winter too (whether you are cold, Jóse has got an heater).

For 18€/night, it is a great deal!