Great and clean apartment in Jersey City very close to the Grove Str subway station. From closing the door to One World Trade Center took us under 15 minutes. Midtown only 30. There's a great breakfast/lunch-place on the way to the subway and a nice restaurant (Porto!) in the main street at 5m walking.
We stayed with 2 adults and 2 kids and there was enough space for us. The location is nice and quiet and away from the craziness of Manhattan.
PS: the subway is PATH so be aware that when changing to the MTC lines on Manhattan, it's another $2,50. So a week-pass makes sense quickly!!