I've only been there once and it was like 1 hour before it closed. We just rode Coolangatta Racer, which was somewhat fun, but boring for the most part (Didn't get us wet at all really. ) And spent the rest of the time at the Wave Pool. Okay sized waves and nice water. Way too many bandanges and objects-for-people's-hair floating around in there. The Lazy River is nice but filled with nasty branches, leaves, and, of course, bandages.
As for Awesome Aussie Twister, my friend rode that (Had to take a break from the Wave Pool, hehe.) and came back and said "I almost drowned all the way down that thing and hit my head about three times!"
The concrete is super epic hawt! We literally skipped across the whole park from the lockers because it was so hot.
But yeah, I'm going again on the fourth and we're definatly going to BB again. It's a nice, mainly relaxing way to spend time that is not filled at KI.