Javiers Air BnB was very very clean and tidy, the apartment (that indeed looked way bigger on the Air BnB photos than it actually is) is very trendy and nicely decorated.
The kitchen though, was not as we expected it to be. Especially for people who want to cook their own meals and breakfast, it's not the best spot to stay - with one pot and one pan, no salt or oil (we had at least basic spices and oil/vinegar in our last couple of Air BnBs), no oven and just one big top plate and one dishtowel that was completely wet after one usage it was just equipped badly.
The location is awesome, just like one minute to the main station Atocha but you gotta accept the noise at night (sirens, street noise, cars, metro, busses, people being super loud). One last point: The two sides of the bed always pushed apart so that we always rolled into the hole that appeared between the two mattresses at night.
All in all, we think that the Air BnB is a good spot for people who want to be in the center and don't want to cook their own meals and don't need their calm and comfy good nights' sleep. In our opinion it is a bit overpriced for what it actually offers.
Even though: Thanks Javier.