Generally clean, spacious room. However, that old sunk spring mattresses gotta go. I don't have any shoulder and back pain, but from the first night I slept on the mattress the pain started and got worse each night I slept on it. By the third night, my back pain was so horrible. On the fourth night which was my last, I slept on the edge of the mattress, which slightly helped with the pain. The worst mattress I ever slept on since a Motel 6 bed about 15 years ago.
Also, one morning I woke up with the horrifying, deafening sound of either emergency or fire alarm. I had to make the international call to the reception desk using my cell (because there was no instruction of what number to use for reception), and asked what is going on. All I heard from a staff is "i don't know" and I asked when is it going to be turned off, and came back with "i don't know". The alarm went on for more than an hour. It was early in the morning... I wasn't ready to go out, couldn't even use the bathroom because the sound was even louder in the bathroom... It was one of the most memorable time in Barcelona, for sure... not in a good way.