We stayed at Miguel & Maria's flat for 3 nights in the middle of February. Maria was absolutely fantastic in proactively contacting me about the flat in terms of location, how to get there and also offering to help book things in advance if we wanted to. Maria is incredibly warm and friendly and has been a pleasure to deal with.
In terms of the flat, it is exactly as described. It was lovely and clean with all the essentials provided. The beds were comfortable and overall the flat was a good size for the 5 of us. It is in a great location, just up the road from Sagrada Familia (which you can see from the balcony!). The location is quite but certainly not isolated and is also within walking distance to the metro which is the best way to get around. The wifi is very good and there is also a TV but we didnt really use it.

Overall we had a wonderful time thanks to Maria's great suggestions for restaurants. She even booked us in at a really nice place for the night that we arrived!

I would certainly recommend their flat.