I stayed at this place for one month and I think it offered a good value for the money and my circumstances. It served as my primary base while I teleworked and traveled locally within Spain.
It is simple but comfortable and functional for one or two people in a great residential and safe neighborhood with easy access to downtown, local restaurants/shopping/necessities, as well as transportation centers (train/airport).
Some comments do mention the place is older, which I agree with, but I don’t think it impacted the functionality of the amenities. Communication with the host was clear and informative.
If you’re looking for a simple but functional and relatively affordable (for Barcelona) long-term option, I would recommend this.