Overall, comfortable space. Building accessible by buzzer to front desk 24/7, convenient elevator for luggage. Felt safe. Front desk staff was professional and helpful.
Room was extremely loud, could hear neighboring guests and street life all day and night. No bathroom door, which was not an issue for one person. I found AC in building far too cold and adjusting my in room settings to 22C still had me waking freezing throughout night.
Entire room/bathroom flooring is a strange woven mat which seemed unclean. One guest complained their floor was soaking with puddles, front desk said housekeeping had just washed. I neglected housekeeping because of this.
It was fine, but I would look elsewhere next time I am in Barcelona.