Samuel & Slavko's place is cool, calm and quiet. The layout of the apartment is thoughtful and the interior courtyard is beautiful . The pictures are perfectly accurate. It's a wonderful place to come in the middle of a hot Barcelona summer afternoon and recharge before a late Barcelona night, both the excellent A/C and the wonderful rooftop pool helped with that.
The kitchen was thoughtfully stocked with all the tools you need if you want to cook (which we did) and also some basic food items (e.g. cooking oil, salt). The back bedroom and bathroom were totally great, the highlight for me was a wonderful big shower, with good water pressure. While it was only just the two of us staying there, this apartment could easily accommodate two couples, each having their own bedroom and bathroom and plenty of personal space as well as great communal space.
Beyond the place Slavko was a fantastic communicator always replying promptly, often within minutes when we were in town. Also check out the guidebook as we found it had more than a few good recommendations.
The next time we stay in Barcelona we will definitely stay here again and I'd highly recommend that you do too.