It was on our (my wife and I) list during our 6 days visit in Siem Reap, it is a bit tucked away, but still few minutes walk from the night market. They provide a great selection of well presented khmer food, at absolutely reasonable prices, and profits go for a good cause. We liked it so much that went there twice for dinner. Their Tasty Corn Kernels (with secret recipe) were delicious, and they can make you addicted to them ! Prawn and Pork Croquettes were excellent, as well as the Ginger dish with Frog and Spicy Duck.
Last but not least, my wife got slightly injured at her ankle during a visit to Angkor Wat, and when we asked for some ice to keep it cold, one very nice guy of the staff offered to buy some tiger balm nearby, that was EXCELLENT service.
Overall a great and tasty experience, definetely recommended.