Remember this is going to be a rental unit - OP does not say what type or size.
Not all units have generators. Poster is coming from Turkey so would have to buy a lot of extra things in US e.g. blankets, heater etc. as many have suggested. I would be inclined to think that a rental unit would not be top of the line with added insulation etc. Keeping warm and having use of water for daily needs should be given lots of thought - especially novices.
Staying in a park with hookups would eliminate some potential problems.