A very clean, nice and modern appartment in the heart of Madrid. Several metro stations only 5-8 minutes walk away, which makes it very easy to get to basically every place in the city quickly. Quiet neighbourhood and quiet street with not much traffic.
The apartment itself has everything you need, if you want to cater for yourself and is beautifully distributed.
Communication was smooth and easy over whatsapp - late check-in not a problem with clear instructions to find the place and to access the appartment.
The only downside for us were the very thin walls - we could not only hear the noisy neighbours discussing with their daughter on the phone, but everybody walking by and talking from the street...