My family and I have eaten here at least 40 times, and the food is not only authentic but it's also really, really good eating. There's simply nothing they do poorly. The atmosphere is laid back, the staff are friendly, and most tables have a good view overlooking the water or the beach.
Whenever we go there I always start by ordering a round of cold mango juice. It's the best I've had anywhere- including Bangkok or Phuket. Very sweet, just the right thickness, but also tangy so it seems as though it's mixed with some other juice than mango - perhaps orange juice? Whatever it is, it makes for a helluva good tasting drink and my kids go crazy for it.
As I said before, I enjoyed everything I've had there but if I had to mention true favorite, something I order almost every time I go there, it would be the deep fried shrimp appetizer (it's different than the fried shrimp entree). Nothing fancy, but always satisfying. It's crusted in a kind of panko crust that is perfectly crispy, the shrimp are quite meaty and they're never overly greasy, and it's served with a simple sweet/sour sauce. If you like heat, as I do, mix some dried red pepper flakes in with the sauce. STELLAR!
The curries are great, the pork stew is outstanding, my wife goes crazy over the whole fish, and the pineapple fried rice is always a hit with my kids and our friends' kids as well. Same goes for the deep fried shrimp (prawn for most of you out there) cakes.
One thing though- don't expect to walk up and get a table here on the weekend without waiting a long while. Even during lunch the place is packed and it never seems to slow down. We typically make reservations for our family on Thursday evening for the weekend.
Overall, in the 5+ years my wife and I have lived here in HK, and the hundreds of restaurants we've dined at, this is still our favorite by far.