Absolutely recommended! Really nice place right in the center of Barcelona with easy connections via metro etc. The room is great, especially if you use it mostly for sleeping and has everything you need therefore. The room, bathroom and whole flat was very clean. A real highlight is the rooftop terrace which is really nice to enjoy for eg. a drink in the night before you go to sleep. A bit of a downside is the location in the fifth floor and the steep stairs you have to go, which can be hard with luggage, so remember it if you have mobility issues. But Sebastian is totally open and honest about it, so it wasn't a surprise at all. In general, the communication with Sebastian is great and easy-going, he is friendly and honest, a really nice host. Enjoy your stay at his place, I really did!