Stayed with a group of friends in Juan's flat.
Pros:
Juan was very friendly and accommodating.
Flat was large and could contain up to 8 people
Great location, 30 seconds from the salgrada familia, 50m away from supermarket, directly above a decent cafe and restaurant
Nice living room
Great transport and metro links
Great bathroom and shower
Cons:
Weak wifi signal - struggled to get online all week
Living room is slightly darker than the pictures lead you to think, although not that dark
Additional "tourist and wifi" fee on top of the initial payment
Overall, decent place, would recommend if you are going to barca with a large group of people