I went...about 7 years ago.
One of the best days (as a GIANTS fan) I have ever had! I was all over the place...Stadium club, press box, turf, and the LOCKER ROOM!! Soooo cool. The locker room was unbelieveable! Players were everywhere. I got to meet Harry Carson, Joe Morris, my personal fav, Otis Anderson (sat for a couple of pics with him ) and a ton of others.
It may have been the first one they had, so it was not as popular which may have cut down on the crowd a bit, but it was awesome. They have changed things up a bit, but well worth it.
I would HIGHLY suggest you go if you can.