We enjoyed our stay in Kees's apartment very much. The apartment is very nice and cosy, we especially loved the outdoor terrace, it was great to have breakfast there. All the necessary kitchen equipment, hairdryers etc that we needed was there and we didn't miss anything. Also the wifi connection was very good. The location of the apartment is really great, it is a nice and quiet neighbourhood and it only takes about 20-25 minutes walking to reach the main attractions of the city centre and the metro stop is just a few blocks away. Also, if you're visiting some of the music festivals at Parc del Forum, it is quite convenient to walk there.
We didn't get to meet Kees personally, but it was very easy to connect him via mobile phone and messaging. We'd definitely stay in this apartment also during our next stay in Barcelona.