Hawn Sys has been around for a long time, outlasting Aloha Computers and becoming the only authorized Apple service center on Kauai. Basically a one-woman operation, Hawn is friendly and very accomodating.
Service and repair is fast and efficient, and sending your computer to Hawn Sys saves a lot of time rather than sending it off-island to get repaired on the mainland.
Price wise, it depends on your warranty and what needs repairing. Overall, her prices are comparable to anywhere else.
Pros: Only authorized Apple service center on Kauai, friendly and efficient.
Cons: No notable problems.