ACY is a great place to fly out of. Its been a few years since we've flown from there, but last I saw they had free parking. Its a very small airport so you can go end to end in just a few minutes.
Spirit flys mostly 737's. They're no frills, but are generally on time with few hassles.
The biggest drawback is that if there is a problem with your flight, there are no other options out of that airport. Think positive!