http://="http://www.seatguru.com/air...7-300_New.php"
Book first and ask questions later eh?
My experience (travelling alone) was far from pleasant. Crowded aircraft, grudging service, poor food and the determination of the passenger in front of me (on both sectors) to release the seatback to its fullest extent, thus reducing my personal space even further.
I was on a connecting flight too, and the staff at EWR were less than helpful.
IFE (if it's working) is OK, but I'd take something else to entertain yourself and the kids with if I were you.
Best of luck and remember, yer gets wot yer pays for!
