Vendors and tour guides ruin experience
This place was beautiful but the tour guides and vendors ruin it. After the climb, EACH guide EXPECTS a tip. They are extremely pushy. Just like everyone has been saying, upon exiting the falls, you are directed through this weaving maize of vendors harassing you. I am a pretty big dude at 6', but I felt very uneasy and even a little scared at the fact that you have 15 locals all in your face demanding money. It was just a few points short of being robbed at knife point, and with the level of aggressive intensity, I would not be surprised if they actually take it to that level.
The climb is fairly dangerous. There is no protective helmets or gear in place, and nothing to hold onto except the person you are following. There are spots where the rocks are slick and you might lose your footing. You can't alway see where you put your feet, so sometimes you end up in sink holes.
Overall, it was beautiful, but I think I would have saved my money had I to do it all over again.