The apartment is really nice and well equipped, even though it could need some basic cleaning products like a dustpan (I had to buy one myself in order to clean). They also only leave two toilet paper rolls and for the price you pay (plus 120 euros for expenses) it would be nice for them to have some nicer details like an extra set of sheets or at least a bottle of water on the fridge when you arrive.
Even though it's located in las Ramblas, once you close the windows there's not a lot of noise and obviously the location is very central. The wifi worked ok and communications with the host was really good and fast.
Overall, I would recommend it mainly for short stays.