This PAX is definitely smaller and less crazy than Prime or East. That's actually kinda refreshing-- the venue is great and has a lot of cool stuff nearby, so I can take time to visit some of the locations within walking distance.
If you've never been to a PAX, know that Prime is much larger-- it takes place across several buildings, one of which is a giant convention center that is being used in its entirety, all six floors-- and it traditionally has had a much larger Expo Hall as well. But it's also completely insane. You need to get in line for stuff so early that you miss almost everything else.