Instead of saying what I like or dislike, I will give some tips:
*There are 3 spots to see the landscape. Unless you are told you are going to see some ecotourism aspect of the habitat, don't bother going further down and down to 3 different spots. You will essentially see the same thing.
*It is a very windy place. I learnt in my recent visit that a tourist fell off from the cliff! Partly due to his recklessness to climb on a perching rock so be careful.
*Get a qualified guide driver instead of an ordinary driver.
Happy to share my travels here: http://happyhealthysg.blogspot.sg/