Here a list of things my wife and I experienced. Not even when backpacking in hostels did I get this.
-No staff to open the door after 6pm. It took me 45 minutes to walk to their office and back with a key.
-I was told a staff member was at the place daily from 8am to 6pm. Only once did I see a person who had to be called up by a new guest to bring in her keys.
-I was told rooms were done daily. Only 2 out of 5 days my beds were done. Towels, sheets and others never changed.
-Only 3 toilets: 1 out of service, 1 available if you wanted to step in a wet floor, and 1 functional not so clean. Only 2 showers, not so clean either.
-The room door and window did not have a handle to pull. I had to use the door key to pull when locking, and the grab of my fingers to slide the window door.
-Not in the 3rd floor as advertised, even considering European numbering, I was carrying up and down bags 5 floors in a tiny dark stair.
-With no staff personnel to supervise, we beared a singing couple playing load music all night until down, and for entertainment a man walking to/from the showers just wearing a towel.
-No air conditioned and with closed window to avoid the heavy noise of Las Ramblas, try not to be bothered by hot weather.
Instead of more details...
Final point: Price vs. Value. We paid as much as we have for 4 start hotels in other seasons. Even in peak season and booking just a couple of days in advance should not justify such a bad place.