We had a really good time in this apartment and the hosts are very friendly. The location could not be any better, right next to Plaza Mayor. The apartment itself is very nice and comfy and has everything you need for a stay in Madrid. Given the apartment is so central, the street outside can sometimes get a little noisy but with closed windows you can hardly hear it. And the view from the little balcony is great. One thing to keep in mind is that there is a late check in fee past 9pm (€30) that needs paying in cash.