We spent 15 pleasant days in Jersey City. The studio is located in a quite and silent quarter. All conditions for living were provided by Nathalie so we had nothing to complain. However, I have to mention for future guests that the railway of Jersey City is not directly connected to the subway of New York City. One has to use the PATH system to get to New York and there is no way to get there by foot.
Otherwise I recommend everyone to chose this studio.