From a training perspective, DFW has a reference library (or at least it did a few years ago) which is useful for initials, and probably recurrent too. The point about instructors is valid. Some better than others but that's probably true everywhere. My experience of the sims is that they were pretty reliable in both places. If you're on an initial the standard of the course / material / teaching can sometimes be better on an long established programme so depends on your type. The cafe helps if you've no car (!) at DFW but there are places inside five minutes from NETC to get a bite to eat. I used to get an airport shuttle from the hotel to the school at DFW and saved hire car costs from my pocket. That's possible at some hotels in NJ but maybe not quite as flexible as they are not used to the regular runs that the DFW bus will do.
Enjoy the course.
G