I had been craving for a good Loco Moco and came here from a friend's recommendation. Loco Moco is the simplest Hawaiian dish (it's just rice, burger patty and fried egg smothered with brown gravy), but it's a hard dish to master. So having lived in Hawaii and having the best Loco Moco there (Blaine's in Hilo), here's me picking apart the loco moco:
Rice: There's a layer of oil at the bottom. Eek.
Patty: It's a bit soggy; I wish it's done a bit firmer.
Egg: Ok. Good runny yolk.
Brown gravy: Good.
Also, I judge how good a Hawaiian place is by their mac salad. It's another one of those dishes that are simple but hard to make it perfect. For this place, just skip the mac salad. You won't regret it.