We stopped by here on our way up to Cameron Highlands, it was very quiet and clean. We took in the scenery and enjoyed some of the fired bananas that were being sold on the side of the road. It's a good rest spot for drivers. The water is quite clean and there are steps leading up to the higher point of the falls.
You could probably stop her for a picnic or snack. We decided to stop again on our way down but this time it was really busy with people swimming in the water, littering and making a lot of noise. So, I suppose it depends on when you visit.