My wife and I were ardent patrons of the Jai-Ya on 3rd Avenue, Manhattan when we lived in the city. Having heard there was one in Hicksville, from this board, we tried it out Saturday when our daughter was with her grandparents.
It was just like we were used to. We had our favorites: Jai-ya special Fish, Prawns with Garlic Sauce, and Pad Thai. The spicy fish was deep fried and bathed in spicy red curry with chiles. The server boned it (just the big bones) and we crunched the crispy fish and skin with sauce in our rice bowls. The prawns, not really a normal menu item but they always make it for us, came split, with heads, and were copiously sauced in their brown sauce with large bits of lightly-cooked garlic, ginger, and pepper. I had an extra bowl of rice to consume this sauce with. The pad thai (not spicy) was textbook: moist but not greasy, with four or five shrimp and a squeeze of lime- a nice counterpoint to the strong flavors of the other dishes.
Service was casual, but proper. Mrs. Dude thought the Thai iced tea was better than in Manhattan, not as overly sweet. This is definitely the only worthwhile Thai option on LI, unless you're willing to trek into Queens.