The location is very convenient: close to many stores, subway, 15-20 mins from Manhattan.
Christian communicated well and in the timely manner.
The only concern I had is that the cold air that blows from the window. When it gets cold outside, the cold air blows from outside straight to inside. That even felt with closed curtains. I woke up with a sore throat couple days from breathing that cold air.
Even though Christian shows how to raise temperature in the whole building (the temperature for the single apartment cannot be changed), that helped a little, but the cold air still was getting in through the windows.
My recommendations to the host: a portable small heater could be used and taping those spots in the windows, through which the air blows in will definitely help to keep the room warmer. With those fixes, that place will be good stay.
When the weather was warm, the coming inside air was not a problem at all.
Other than that everything went well.