We loved every moment of our stay in this apartment. Check in was easy (even though done by Bernat's father, who doesn't speak English - We managed to communicate through signs and gestures :) ) and the apartment was spotless (and bigger than expected.) The little terrace area outside was a bonus and we spent a lot of time out there drinking coffee in the mornings.
Check out was also very straight forward and Bernat was very easy to reach and communicate with.
Would highly recommend this apartment to anyone visiting Barcelona.