Irene's place is quite centrally located in Mykonos/Chora - just 2-3 mins walk from the Old Port (the water taxi stop is located here). The location is outstanding, as you are in the centre of all activity. Little Venice (where all the bars are located) is very close. The Fabrika bus station (from where you get buses to go to other beaches) is 5-10 mins walk. As for the house amenities, there was a Nespresso machine, the wifi connection is excellent, and so is the AC (but beware, there is only a ceiling fan in the bedroom which runs at an abysmal speed)
However, the size and check in experience left a lot to be desired. Irene did try to make up for it by offering cakes, pies and a bottle of wine. But frankly, we did not stay enough in the house to enjoy these.
I had selected this listing vis-a-vis others on the basis of reviews and photos. However I felt a bit dejected as it didn't turn out as spacious as it looked in photos. If you have large bags, or if you are more than 2 people, I'd suggest you keep this in mind. We felt the living room was cramped (we had 2 large and 2 small bags, so there was no place to move around) and the bed was queen sized bed (not a proper King/Double).