So I should start by saying that when I was looking for a Guide for Ankor Wat and some other temples in Cambodia, I chose a very highly rated guide on a certain website. I received a confirmation from this guide and thought all was fine. About 2 days before my confirmed tour, the guide cancelled. I later found out this is very common with guides in Siem Reap, if they get a booking with a larger amount of people even if they confirm with you first, they will cancel on you. So feeling frustrated, I chose another guide. This was Pin Vannak. After meeting him, he told me he always honors a booking once confirmed. Well, I could not have found a better guide. Besides being very reliable, the are other things I like very much about Mr Vannak. 1: His English is excellent. 2: He is punctual, He was always at my hotel 15 minutes before pick up time. I hired him 4 different times and he was always early and never late. 3: He is very flexible, during our 2 day tour, I decided I wanted to visit the Landmine Museum and it was not a problem at all, he is very easy going. 4: His knowledge about all of the temples is extraordinary, but not limited to the temples, you can talk to Mr Vannak about the glorious and tragic history of Cambodia. I also had very interesting conversations with him about politics, food, and the culture of this great country. If you hire Mr Pin Vannak, trust me, you will be in good hands, he will take care of you. Just a note, i Have returned to Siem Reap 2 more times for more reasons than one, and I always meet Mr Vannak, he has helped me with so many different things, he is not just a fixer, I also consider him a good friend. I have not been there in 6 months and he still keeps in touch.