Martini and his partner are great hosts, very friendly and helpful. The terrace of the apartment is lovely to spend time on and the bedroom has a small workspace in case you are teleworking (as I was).
The location is in a fairly chill neighborhood, not too bustling or touristy, but is very well-connected by bus and metro to any of the main spots to visit in BCN. Additionally, the apartment is close to direct buses going to the airport and it is close to Sants Estació, from there you can take longer-distance trains to nearby Catalunya or other areas in Spain.