I have not been in several years but I assume part of it is still a wild crazy circuit party but I emphasize that some others go there for the park and are not there for back to back partying.

Either way it can be a great experience. The parties are big and usually really good. I just marvel at how many good looking gay men are on this planet when I have attended in the past.

Get some sleep before you go and whatever you do plan to take a few days off afterwards. Back in 2005 I tried going back to work the next day and oh it was not pretty (ended up in bed for 24 hours due to exhaustion).