HUGE space for a convention. That's probably a major plus for them.
However, the self-parking deck and weaving through the poorly signed Venetian (we had to ask for directions like four times) makes convention going a painful experience.
Great for tourists since you get stuck in one place, but terrible if you're trying to get to the Sands Expo and you can't walk there without trying to find a directory (which do not post "you are here" dots) or asking Security.
Overall, the temperature was very good in the convention area, and once you get in there, it's actually a pretty nice area.
We didn't try out the wifi there, so I'm not sure how it works covering such a large space. Probably good to test out next time.