I am a SuperGuest, and have stayed in over 70 properties on AirBnb thus far. Overall, I found Marta and Paul's place to be great. Although not perfect (but whatever is), the stay was enjoyable and I would feel confident in recommending their place to others.
The Good
Marta and Paul's place is a nice large 2 bedroom / 2 bathroom space, with a fantastic backyard retreat in the middle of Barcelona. It is absolutely perfect to have each bedroom on opposite ends, with each having private bathrooms. This creates maximum privacy, while still connecting the guests via the common area kitchen, dining area and lounge. The beds are comfortable, and all the furniture is in good condition. The bathrooms are great, and the kitchen is well stocked. The neighborhood is off the beaten path, and i love that about airbnb... you truly get to live like a local. The building is newer, so it is nice all the way around.
The Not so great
The bedding situation is interesting. There are two twin beds pushed together in each bedroom, which would form a king. This is both very convenient and also not practical. As a single person staying in one of these rooms, I like a bit more room than a twin bed to stretch out and relax. Even pushing them together, there is still the divide between them, and thus you are essentially confined to a twin bed. (the beds are comfortable however). Also, the air conditioning works, but is very faint. Because the unit has beautifully high ceilings, the Air con struggles to keep up. It stayed cool enough during our stay, but it was running all the time, and some people may be frustrated by the time it takes to cool down, and that the overall temperature is never "cold".
Overall this place is great. I really enjoyed it, and i think it is great for colleagues, two couples, or a family, with older children. It is probably not the best solution for a family with young children. Thank you!