I had very many AirBnb experiences so far and most of them were awesome - but I think, Sergio's apartment in Barcelona was my favourite so far!

I spent 5 days there with my wife and we were very sad at the end, that we left the apartment and Barcelona for Mallorca and didn't stay longer. Everything about the apartment was just perfect:
- very modern and stylish
- super clean
- everything you need is there (2 AC's, iron, toast & coffee maker, fridgerator, micro wave and much more)
- the neighborhood is just perfect: many incredibly good restaurants, bars and so on. We rented a bike (there is a bike rental 5-walking minutes away) and with the bike, we were at the beach in less than 5 minutes (to me it was the best beach part of Barcelona: very clean and not so crowded as in the most-central area) and in 15 minutes in Barcelona center, which you can also perfectly go to with the nearby subway (6 stations)
- The communication of Sergio was the best I've seen for a host so far: he added me to WhatsApp directly after my booking (3 months before our stay) and was always super friendly and very quickly responsive. When I needed something (e.g. bike or luggage storage), he always worked something out.

You have to stay here! We will definitely come back asap! Thank you, Sergio!

P.S. Just one note: there is a couch that can be make to a sleeping couch, so it is possible for 4 persons to stay there. However, to me for 4 persons the apartment would be too small.