I got in contact with ATSP Tours on a friend's recommendation and was very pleased I did. From the first contact in August, through to the tour in November, everything was handled professionally and promptly. My initial contact was with Sina, who was happy to tailor his usual 2-day (full day) tour into a 'temples-only' tour, leaving some time during the middle of the day to rest and refresh back at the hotel - highly recommended! Sina met me when i arrived in Siem Reap to go over the tour and to make sure that everything was OK.
The tour was conducted by Keng who was not only excellent and knowledgeable but friendly and good fun! He made sure that we visited the main sites before the big tour groups arrived (or just after they had left) and got us up early so that we saw most temples in relative peace and quiet. He not only knew the history and detail of every site but was able to give us some personal insights as he had played around most of them when he was a kid! A nice touch.
The modern, air-conditioned car, complete with cold towels and water, made a big difference and is also highly recommended after a few hours in the tropical heat. Overall, a great experience and one I would be happy to recommend.