Overall we liked this agency run apartment - it is rather roomy, has AC units in every room, and is located in a quiet neighborhood within 5 min walk to a Metro station (Hospital Clinic), 15 min walk to Casa Batllo, about half an hour walk to Sagrada Familia. Internet worked fine for basic email checks. Nice market and a big supermarket just across the street, a couple of bakeries and a wine store are in the same building. I'm giving it 3 stars because of the multiple issues, each of which is relatively minor, but together they do tend to affect the experience. I'd given it a 3.5 stars if it were possible.

detailed comments that might be useful for other travelers:
- apartment was not ready when we arrived (we agreed on arrival time well in advance) and we had to wait for the cleaning
-smaller bedroom does not have a wardrobe, so all the clothes have to be stored in the 2nd bedroom.
-headboard in the smaller bedroom is not attached to anything, so every time you touch it it makes a lot of noise
-the umbrella on a terrace was broken when we arrived so we have not even tried to use it (we sent a text to Angel regarding broken umbrella and wine glasses but did not get a reply, not sure if he received the message)
-the dishwasher door does not open all the way, so it is really hard to use the bottom shelf for the dishes
-kitchen is sparsely equipped - 2 wine glasses, 6 sets of plates. The only thing that kitchen had from the basic necessities was sugar. No plastic wrap, coffee pods, tea, salt, olive oil etc.
-bathroom had a smell, see comments from users "John" & "Gilles"