Great trip and Ramon was a great host. He and his son were very communicative in advance (in spite of me not knowing the language!) and Ramon senior made my check in very convenient and comfortable. I had no need to get in touch with them once we were there.
The location is great if you like the beach and the all the beach nightlife and also we found it convenient to get around the whole city from there. A tip I can offer that my daughter figured out is to rent Donkey Republic bikes a couple short blocks away - they come with integrated locks and can be locked on the bike rack right in front of the apartment and there are bike racks all over the city. I had no problems getting a taxi when I needed one and bus lines run through there as well. I also walked to many of the other famous neighborhoods and sites.
The apartment was very clean and everything worked fine. Lots of windows on both sides of apartment so really no need for a/c even in early June though I did use it at night to create some white noise - Barcelona is a busy city and certainly there is street noise from cars and trucks in the morning.
All in all an excellent experience!