Cat's place was really good. We were a group of students (all male) who care about the cost of our accommodation. Cat's place is perfect for this.
Cat was also super responsive. Easy to communicate and answered all of our questions.
The room itself is super functional with 4 beds inside it. All we need. However, I can imagine that for travelers who care about what their place looks like, it might not be the best choice.
The neighborhood is also a little bit sketchy compared to other parts of Barcelona.
Again, we were a group of four guys, so we did not care. BUT, I would probably be a bit worried if my girlfriend would come here for a trip with three other girls.