I've been here about 5 times in the past month and yes, though you may have to wait a bit for service depending on how busy they are, the experience is totally worth it. Tonight my trusty companion had the curry for the second time and unabashedly stated it is the best she has had. I snuck several bites myself an agree. I've had several dishes so far and my favorite is the Phnom Penh Soup, though the Loat Cha and the Katheaw Cha are close seconds. The Spring Rolls with the fish sauce are a "must have"- perfect. They have BYOB. We brought a nice Riesling with us, which is a perfect wine for this cuisine.
The fact that it is hard to find is intentional. These folks are "in it to win it" and are growing at a pace that they can manage.
Go there, be patient and when Yut smiles at you, he means it!