we (a couple) stayed in this apartment for a week in the end of March 2013. in general i will recommend this apartment for anyone who have second thoughts.
in more details -
the house :
all things in the kitchen, the bathroom to the sleeping room are brand new and were chosen with a sense of style. kitchen well equipped for eating in, we had hot water for showers anytime we wanted. the living room and master bad room are getting great sunlight during the day . there's an aircondition in the bed room only. (living room can get a little cold)
host :
was making is best to keep us satisfied [it worked :)], easy person to communicate with (in english).also honest and fair.
location :
close to the gay night life area, have enough groceries store around, close to metro station, we didnt have to walk more then 20 minutes, for most of the places we wanted to visit.

would definitely come back next time we visit Barcelona !