Trevor's place was amazing! I stayed with my 18 month old, husband and sister. The place had more than enough space for all of us. The location was more than perfect, we were close to the city centre and to all other tourist attractions like the museums. We didn't have to take the bus or the train at all, we walked everywhere with our daughter.
The apartment it's self was perfectly decorated and very clean and comfortable. It honestly felt like a home away from home. It had all the amenities and good quality towels, paper towels and cookware etc. The owner left us water and milk as well.
There were two balconies and both faced a nice and quiet court yard!
There is a supermarket open till late right at the front of the building and many Restaurants and bar right below the building but it's not a noisy or crowded area.
I would definitely stay here if I visit Barcelona again!