This place is very stylish and cosy at the same time - it's perfect for a solo traveller or a couple. It is small, but has everything you need. We were greeted warmly and had no problems with the check-in - we were even able to check in earlier! Location is very good, close to everything, so we took a lot if walks with almost no need for public transport. There are some nice places to eat around.
Only problem we encountered were exceptionally loud neighbours. We noticed in Spain it is normal to speak loudly, but this was a bit too much, especially when you are tired and want some rest. Apart from that we had no problems :) Thank you, Ana, we had a really nice time, and if we get to visit Madrid again, we will surely look for you and your cool place!