We chose the Renaissance Newark Airport Hotel as it is a property Celebrity uses as a pre-cruise option.
The airport shuttle was quick and efficient. Â Finding the shuttle was a little harder, but the Newark Airport has people stationed at key points to steer you along to P4 where the hotel shuttles all pick up.
There is not a shuttle to the ship.
The hotel looks new and modern. Â The front desk is efficient. Â The property is clean, tidy and attractively landscaped. The hotel is all non-smoking.
There is a restaurant on site and takeout is available. Â I opted for the skirt steak on site and it was quick and tasty, with tip, no drink it was $30. Â If traveling with a family, take out pizza may be attractive.
There is a small gym and an indoor pool, which was being well utilized by families in the evening.
I stayed in room #900, a standard king facing a busy highway and directly at the elevator. Â Both were noticeable noises and best avoided. Â The back of the property faces a more residential area and would be a better choice.
The room was spacious and tasteful with complimentary coffee, tea and a safe.  There is an icemaker and vending machine on each floor. The bathroom is on the small side with -0- counter space and a pedestal sink.  I had hoped for a bigger tub for a soak, but it was just a standard tub.  Toiletries are Aveda.
http://www.marriott.com/hotels/hotel-information/travel/ewrnr-renaissance-newark-airport-hotel/