We had a great stay at Pol & Alvaro's - the flat was equipped with everything needed, the small balcony was great for the morning breakfast. Location-wise it was perfect as well, close to the metro, Sagrada, The Arch and 25 min walk from Gotico.
We had a situation where the shower broke on the second day and in 2 mins after reporting, a maintenance guy stopped the running water. By the time we came back from our walk, they had replaced the whole shower which was amazing!
The only slightly negative thing is the flat feels quite small, compared to other places we've been to for similar price, but unless you plan on staying inside the whole day, that shouldn't be an issue. Also the pillows were terrible, maybe think of improving on those as a good night sleep is needed with all the travelling around Barcelona.
Thank you and hopefully we'll have the chance to come back!
Victor and Ewelina