I could say that Mod is such a great host plus his apartment is totally located "in the city centre" where you can walk only a few steps to the shopping areas!
Mod also gave me a many tips such a things to do, where to eat as I didn't have specific plans to do in Barcelona at all so thanks to him!
Also I feels like he is already become my friend now and I would definitely stay with him again in the future. Highly recommended to stay here!!