Needless to say the perfect location and everything was very comfortable during our week-long stay.
We've used Airbnb in many place of the world, but this apartment is one of the best we've been to.
Also, Marcel is a very considerate host to the guests staying at the accommodation. He was communicated with us very well, and he always responded very quickly and nice.
You will be very lucky if you can stay in this apartment while traveling in Barcelona.
P.s. Pay attention to the guidebook on the table. Lots of really useful information.