This apartment is right in the heart of everything; felt like we were in the 'Times Square' of Madrid. Once in the unit it was quiet and the view out the back window was magnificent.
Our family of five fit perfectly - one king (two singles pushed together), one traditional queen, and one full size bed. There was also a full size futon in the room with the two singles/king that we didn't use. The two LR couches are long, but don't pull out. The kitchen is modest but adequate for coffee, tea, breakfast cereal, yogurts, and a fried egg if you'd like. There is a cooktop but no oven.
The bathrooms are new and modern, but the showers are small. Large people beware, it is hard to get thru the door into the shower.
Overall we enjoyed this apartment.