Giselle was nice and attentive to the guests. There were many little amenities, such as Q-tips, good size frig that showed she cared about the guests.
The room was spacious as shown in the picture, and the bed was good.
The location is great and safe. It is at the center close to everything, supermarket, Callao metro station, restaurants, between 2 great piazzas (sol and gran via), tour bus. It's a very lively location with lots of people.
We would stay with Giselle again if we are in Madrid, so we recommend this place.
Be aware that shops don't open till 10AM, the earliest is Starbucks at 8AM, and the local Rodilla at 8:30AM. People could party till 3AM on Sat, midnight on Sun; but otherwise quiet. We just closed the windows, put on our Bose QC15 and slept till morning. :-)