SO MUCH FUN!
Went this past weekend for my friend's 21st birthday! We got there and the line was pretty long to get in. We bought our tickets online, so we got to skip through a few lines, so if you can, purchase ahead of time! If not, find a promoter, the strip is FULL of them! We stayed in line for about an hour, maybe a little more. What I did is I bought a waterproof pouch for my phone, that I doubled as a wallet, put my money and ID and didn't worry about them at all (found it on Groupon for $8).
For drinks, we just got the large souvenir cup that costs like $35, you can get anything in it, so I got a margarita, which definitely had me going. My friends got the slushy, and they claimed that it barely had any alcohol. There are planters around that people left their shoes, coverups, etc. so we used that. Went into the pool and enjoyed the music. Calvin Harris was amaaaazing! We were living! Hot guys everywhere, great music, delicious drinks, I was in heaven! I didn't even want to leave.
Can't wait to go back!
Protip: Don't leave your souvenir cup on the edge of the pool if you're planning on taking it home, because it won't be there when you come back for it. :(