I have been all three years, and its been three of the most fun weekends of my life. For me, last year was the most fun out of the three, which was surprising, because I wasn't too terribly pumped about the lineup.
Hot girls in bikinis, drugs, booze, and really good music on the beach...you can't really beat it.
Being able to stay at a condo(as opposed to camping out like most other festivals) is better, IMO. Its much more relaxing. I recommend booking one within walking distance.
Most important, however, is this. The overall setup of this festival is just ridiculous. Being able to get a festival of this size to an area that has condos galore to rent is just unreal.
This upcoming year might be my first year I don't make it. A buddy planned a damn batchelor party the weekend of Hangout. I'm legit thinking of skipping it to make Hangout.
I vowed after last year's epic that I wouldn't miss another one til I had kids and now this moron is forcing my hand the very next year