The sights were obviously amazing...but the best part was having an expert tell us everything about the temples and sights we were visiting. Our guide was very outgoing and friendly. He answered questions and was a great photographer for us as well. It was also nice having a personal driver from place to place. There wouldn't have been any way we would have seen as much as we did in the amount of time our private tour took on our own. Hands down this was worth the money.
Our tour was private and I would suggest if you can afford it to do it this way. Our guide was wonderful, pointing out interesting facts and keeping the children amused. The temples we saw were awesome, with the children's favourite being the "Tomb Raider" Temple with its fantastic tree roots.