Our driver Wayan was very friendly and knowledgeable. We learned a lot from him about Lombok and Indonesia. We were curious among others about local produce and we not only learned a lot, but Wayan kindly kept showing us trees and bushes with our even without fruits that could interest us (many of them are seasonal) - cashews, mangosteens, durians, jack-fruits, all kinds of bananas, cotton trees, tobacco fields, avocados, mangoes and papayas, of course, and that's only the exotic ones. I really enjoyed our unscheduled morning stop at a local food market.
During the day we also had two local guides, who were also very informative. Too bad we didn't know in advance we'd need to ford a river a few times on our way to the waterfall, because we only had hiking shoes and left our water shoes in the hotel. During the trip we stopped at a few very nice view points.
We had excellent and cheap lunch, upon our request in a local warung. They are always better if you have a local you can ask if you don't know :-)
Overall, this was one of the best day trips we had in Indonesia during our vacation. And we had a lot of them, because we like to explore countries on our own, but everybody discouraged us from renting a car, so such trips were the next option.