The flat is in a great location to visit the center and get around with transport even to other cities. That's mainly what I did while in the city, and I didn't spend a lot of time in the apartment.
The room's window cannot be opened, and while fortunately the weather was not really warm during my stay, it did get stuffy and I wasn't told of this detail, nor of how to deal with it.
A good place to explore the city if you don't plan to spend a lot of time in the room, I'd say.