I travel to quite a few conventions, have been here twice. It is big. Very big. Too big, almost.
It is so easy to get lost in this HUGE multi-level place. The signage and directions for conventions I have attended have been poor. I've spent a lot of time wandering around trying to figure out which halls, etc. There is a nice selection of different little restaurant places inside but - Skip Them! The best thing about this place is its location on College Street. There are so many exceptional restaurants within just a few blocks. And, downtown Charlotte is lovely! So many fountains, open areas, gardens to visit.
My other BIG complaint about this place....charging too much for Wi-Fi packages. Look, stop being cheap. Business and trade groups are already paying you huge $$$ for the place and services. Throw in wireless. Why is this such a hassel? Because in many places, something about the building seems to really disrupt wireless data signals to your 3G/4G phone. So, if you're planning on tethering with you cell phone to get wireless, you have to be up in the open common areas to keep from being dropped. Lame. Don't even try to get it in the big exhibition hall.