If you are trying to decide between a hostel and mi casa inn, it has a lot of pluses. If you are trying to decide between someone's apartment and mi casa inn, I would recommend the apartment. I didn't realize that this would be a self-service efficiency hotel. Kind of like a WeWork in concept. No one works there. Everything is done by code and device. If you call them, no one will pick up, so all communication is online. Essentially, it is a business designed in response to Airbnb. The location in the city is good, but the place itself is in commercial office space, shared with dentists and medical offices. It was clean, pretty close to as described, and I had no major problems. Although, when I tried to leave on the last day I was locked in because there is a gate between the street and the building and you need a key to leave. I also had some difficulty with my door, wasn't provided with hand soap, had to hunt down toilet paper. Overall, a good place to stay if you need one in Madrid, but important to understand what the place is before selecting it.