Don't pay full price.
Check groupon, living social or travel zoo for deals. I lucked out and travelzoo had a cyber Monday special, and we got the nighttime happy hour for $18, normally $45 which is a 1/2 hour ride plus an open bar.
Drinks were not watered dow, as Stephen found out. They had "almost" everything from beer to any mixed drink you want, and, of course pepsi products. They did not have water, though, which was odd.
The ride was nice, but not worth full price. I also dinged them for not cleaning up the mess made by the prior ride. Someone spilled their drink and left a soppy mess and a wet rag on the seat. The staff took the rag, but never cleaned up the mess.
I don't know if they couldn't see the mess (the capsule is dark) but it was clear there was a puddle on the bench. I had to ask for the bartender to give me a stack of paper towels to wipe it down.