Just spent 3 weeks in the Poipu area and ate several lunches and dinners here. The fish taco at lunch is a great deal for a very yummy portion. The cajun ahi was the best fish I ate anywhere else (and I ate a LOT of fish).
We preferred the bar area to the restaurant - same great food in a more casual atmosphere. We found the staff to be very helpful.
Tried a Lava Flow there, but it was more like a dessert than a drink and I'm not sure if there was any alcohol in it, so stick to wine or beer.
Can't wait to go back.