I'm not telling anyone where to go and how much to pay. For me, 2.6 or 3.2 isn't a big difference, but for many it might be. So I can only talk about what I'm willing to pay for.
I've not mongered in NJ before, but I've visited cheaper places in Queens and more expensive places in Midtown Manhattan. You get what you pay for - the Manhattan girls are (typically) younger, more attractive, more fit, and have a better attitude. The Manhattan AMPs are, (typically) nicer, cleaner, more pleasant to visit. HAGNJ feels like a Manhattan AMP, and charges accordingly. It's well worth it to me. If it's not worth it to you, by all means, go some place else.
And yeah, there's a ton of reviews of HAGNJ here. Clearly, the place is popular despite the price. Wonder why....
(Before someone jumps in: yes, there are bad AMPs and providers in Manhattan, and good ones in Queens. Exceptions happen. But I stand by my characterization of the average in those areas.)