We didn't meet Sven in person, but he is very nice, informative and reachable during the time. The flat looks exactly the same as the photo, pretty, well-equipped and clean. Located in the centre of Gracia, we are surrounded with loads of eateries, bars and groceries, so we always easily found ourselves nice refreshment in between. But do be aware that there are some noises outside the window during the night if you sleep light.