I stayed here for a month in April and it was great. Hope to stay there again. It was quiet, which is not common in Madrid. There are amazing views of the mountains and it is close to the best parks in Madrid. Clean, modern and has all the amenities you need. Public transport is very close and traditional markets and shops are a four minute walk away.
If you want to be on the edge of the action and energy of Madrid, and have easy access to it, then this is an excellent place for you. For me the quick access to the parks of Madrid was a key feature.