Christian is a lovely and charming person. I had a great time with him having nice talks and enjoying Barcelona daylife and nightlife... He's the best host you could wish to have, respectful and trustworthy. Highly reccomended!
Christian and Stephan were super nice and respectful, and they left the apartment in the exact same conditions as it was.
Shame I didn't meet you. My mum says hello, good luck for everything and come back soon!