A few friends and I reserved for weekday dinner on a whim and it did not disappoint! We were told by our server that it has the same owner/ chef as Pai. Very glad that we found this awesome Thai place so conveniently located.
The best part about Sabai Sabai is that not only is the food great, but they take reservations and it is less crowded than Pai (or say, Khao San Road) so you can actually have dinner for two at your own table and hear each other talking without yelling. =)