The place was lovely & looked just like the photos. Check-in was very easy as they just gave us the code to the lockbox to go in whenever we showed up. Would not recommend having a car as parking was impossible like everywhere else in Madrid. The bed was comfortable, and there was a very handy little washer with a rack to hang dry our clothes. We did not feel cramped in the room & were able to spread out. The bathroom is quite small, which didn't bother us, but large people may find it too tight.
Although we really liked the room, the warnings posted on the walls really stressed us out & made us nervous. My wife didn't even wear makeup because she was afraid a little of it would get on the Ikea towel & we'd be charged 25€ to replace it like the sign said. Another one warned us not to lock the key inside because we'd have to pay 100€ for the locksmith. Checkout is very strict & charges 50€ for every hour stayed after 11am.
Overall, nice place and would recommend!!