I stayed here with my husband for 8 days in July. The apartment is big and comfortable, pretty much as it is seen in pictures. All appliances worked good, included the AC, that we used only one day. Location is very good, very near of Smolenskaya metro station, and just 50 meters away from Old Arbat Street, plenty of shops and restaurants. And a few meters more from New Arbat, very commercial too. There are at least 3 supermarkets (open 24 hr) very near (400 m or so). Communication with the host was good previous to our arrival (in english, by e-mail). He was in vacation in July, so he sent a lady to check in, but she spoke no english, and we communicated through an application in her mobile (and it was not very easy).
The hot water had a very weak flow, so it was no possible to fill the bathtub (as the tub never got full), and that made difficult to adjust the temperature of the shower with the single shower tap. Saving this problem the apartment is very good.