Myself and my partner sent 5 nights in this apartment and thoroughly enjoyed our stay here. The space is very well laid out, comfortable and has everything you would need. The bed is comfortable, and the area is relatively quite at night. The shower is perfect, a nice size and always hot water to meet our demands. The only caution I would raise is that you need to climb a number of flights of stairs that are quite steep and narrow to get to the apartment, this is not a major issue unless you have heavy luggage or limited mobility.
The location of the apartment is perfect, and within walking distance to both La Rambla and the Gothic Quarter. Metro stations are very close for access to airport and all other routes.
The host was very pleasant and helpful, providing us with a detailed list of useful information before we arrived. They where very contactable and made sure we where comfortable during our stay.
I would highly recommend this space, and will definitely return in the near future.