I Will start by saying the description is accurate and the flat is recommended. If you want to read the rest of it (I was there a for a week) here goes:
The flat is located on the Edge of Chueca which is the hip/gay neighborhood and Gran Via which is (for me) Super touristy , busy, noisy quite seedy (with visible sometimes aggressive prostitution going on) and generally to be avoided. However it is super comfortable, close to everywhere and max 20 -30 minutes walk from all the major tourist attractions and if you don't mind the chaos go for it.
The flat itself is as described , very convenient. Being that it is in a small old Spanish house you can hear quite well what's going on in the apartments next to you and in the street but the bedroom is quite and the bed very comfortable so I had no problems sleeping. Communication with Ricardo was simple, a friend of the hosts waited for me on arrival and checked on me the following day but other than that they left me to my own devices (I was there for a week).
Wifi was a little unstable and signal was quite weak in the bedroom.
Kitchen with everything you need but who would want to cook with a restaurant per meter ratio which must be one of the greatest anywhere in the world just around the flat.
All in all despite the little things nice flat in a very convenient location .