jar77,

Depends...

1) How big is your group?
2) Did everyone have a GREAT time?
3) How helpful were the guides throughout the tour? Where they VERY Helpful on where to walk, jump in, enjoy the washing machine or cave? Pointing out flora and fauna?
4) Did they use your camera to take pictures?

I recommend on checking the water level in the river before you book an go, too high or low and the experience could be impacted.

Enjoy,

VVHT