Cars place was pretty great. So local and close to lots of amazing sights in Madrid. He was very flexible when I arrived and even let me check in early. It’s really worth the money if you are thinking of going to Madrid and will essentially need somewhere just to sleep and shower, and even at that it was a wonderful place to stay for just that.
My only regret was not reading the description better, I didn’t understand from the post that Car and another person would also be staying there. It was not a problem in the slightest, and in all honestly I didn’t see Car once after checking in, but just something to be slightly more aware of, if this is something that would have concerned you.