We spent a fun, action filled day at Xplor.  

They have zip-lines, water slide, amphibious cars, underwater caves and restaurants/bars.

Ziplines: great.  long and fast.  some end up in the water which is fun.  

Buffet: the food was pretty good and they had some healthy options (orange-chia juice!)

Lines: the lines were not that bad when we were there so we had only a short wait at each station.

Picture: It is nice that they have picture stations so that you can see your pictures before you buy them.

Tips: 

Wear Teva or water shoes.  Do not just wear flip-flops because they may fall off on the zipline and there is no way to recover them.  

Same with sunglasses, they will probably fall off so either leave them in the locker(part of admission) or wear cheap ones.

There are a lot of steps up to the zip-lines so you need to be in decent health.  The stairs and paths can be a bit slippery.