I spent a few days here with my company for a trade show. This place is HUGE! It's very clean here and the employees are very friendly even though they have to stand in the same place for hella hours.
Luckily, there's always a cab line waiting for you so it's easy to get the hell outta there and get in there quick if you're running late.
Food choices are ehh. Obviously over priced but if you're desperate for something Sbarro ain't too shabby. The employees there are nice too =)
The bathrooms are plentiful too! Pay attention to signs because sometimes there are some available upstairs with more stalls and have seen less traffic...meaning not as smelly.
Very nice convention center overall!