I generally don't write reviews for places that are already ranked so highly, but I'll make an exception for La Boulangerie. They have two locations, one in The Alley, and one across the steet from the west end of Pub St, under the X Bar. Though the Alley location had better air conditioning, the staff at the location below X Bar were too nice for us to go anywhere else.
The food was great--I was particularly fond of the cheese toast breakfast. Plenty of protein to keep you going all day at the temples. The make-your-own-sandwich option was a favorite as well. When they happened to run out of the rye bread that my girlfriend ordered, they ran right out to buy a fresh loaf. The papaya-yogurt smoothies kept our stomachs in working condition for our time in Siem Reap as well.
I've lost his name now, but the head waiter at this location was one of our favorite people to meet in Cambodia. His English was superb, and when the restaurant slowed down a bit we fell into conversation and he ended up teaching us about Angkor Wat for almost an hour.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.