Upon our arrival we met Carlos at the metro station 5 min from his flat. He gave us a quick overview of his place and showed the most important sights of Barcelona at the map.
The flat was as described and the room was quite and tidy. We had access to the kitchen which we were using actively and washing machine were really handy as we stayed a bit longer. You can use living room as well and it is rather comfortable and positive.
There are 3 supermarkets nearby (a few min walk). The beach is 20 min walking. We recommend purchasing of T10 metro card as it is much cheaper than buying individual ticket and you gonna need metro to reach the city center. Thanks Carlos and Norbert for the hospitality ;)