Location is impeccable. Iris was friendly in person but was unfortunately busy during my short time there and couldn't always reply quickly for requests like an extra blanket. Probably just bad timing because she was about to leave for her summer vacation (have a good one Iris!). Madrid is such a beautiful city -- I'm definitely coming back again! :-)
(A small note that, as advertised, the bathroom is private and wonderful but it is not ensuite i.e. you have to walk outside to access it.)