In brief: if you are 30 and above, you might want to reconsider. You can get much better for similar price in the same neighbourhood. Even discounted, this flat does not make the cut. Details below.
Details: the name “Gaudi apartment” is misleading. That is a minor point (as we knew before checking in) but you should understand that the place is, of course, not in a Gaudi building, and not even facing one. The nearest Gaudi buildings are two blocks away. More importantly, the building is old and not well maintained which means: noise, noise and noise! We could hear the TV, music and the coughing of the neighbour well into the night (1am+). The insulation is nearly inexistant.
Minor incident: we came back to the unit one evening and noticed electricity was gone. Fuse box showed a defective fuse, the one somewhat controlling the water heater. While responsive, Camilo (who works for Xavier) could not fix the issue and did not have the keys. We left the next day without a shower.
When contacted, Xavier (the owner?) offered apologies without follow up. When we asked him a couple of days later what was the outcome, mentioning the noise and the inconvenience of the whole experience, and enquiring about discount on the last night, he simply mentioned that we have not reported the noise, hence he has no evidence of it, while acknowledging that the building is old, that inconveniences may occur, and offering a discounted night if we go back… Needless to say: not the best gesture :(
Barcelona is a great city. Our friends were staying a block away in a fantastic apartment. We just picked the wrong one :)