We've been to Barcelona only for one night but we had a great time in David's place. First thing that we appreciated is that David met us personally, explained everything and gave us keys not only for the apartment but also for the parking lot. We had so many troubles with parking in Barcelona that it really sounded as a salvation.
Overall the place is very comfortable, it has everything the guest need. I would like to stay more but we had a pretty busy schedule of traveling. I would definitely advice this apartment for all of my friends coming to Barcelona.