Not only is the apartment extraordinarily comfortable and modern, the agency is really keen to help you with whatever trouble you might have.
In my case, they always answered my messages in 10-15 min and sent over right away everything I asked for that was missing or broken.
The kitchen was well equipped ( although the pots could be bigger since it's a house for 8 ) and there were several fans and an air conditioner in the house, WiFi and a TV
The apartment had everything we asked for and it couldn't be better placed in Barcelona.
I really liked the experience and I wouldn't hesitate to reserve again with this Stay U-Nique.