So, I think I have read enough about Barcelona to tell you that the sewer plumbing is a bit temperamental. It rained a bit in Barcelona when we were there and the entryway to the building smelled like old pipes venting, causing the hallway to smell. But do not worry, the apartment does not smell bad. In fact, it is a great apartment and I would stay there again. The toilet in the master bedroom belched once and apparently sent water flying onto the floor and when we got back from Segrada Familia, we had a bit of cleanup to do. However, again, this was not an issue for Angel. This is just Barcelona due to old sewers and plumbing and the sea level being so low. Angel is incredible and the stay was a complete delight.