We are regulars to the Big Island and usually look forward to hanging out at local haunts but I was diagnosed with celiac this year and have had to shake up our dining habits. We had resigned ourselves to making do without since Hawaii is typically not good for gluten free. However, knowing that thai food is often gluten free friendly, we asked at Charley's and they were very familiar with our needs and even recommended other places for us to try. Most importantly, they knew without me having to say anything that soy sauce/tamari usually has gluten. This inspired me with confidence. :)
It's no surprise after that intro that we thought the service was excellent. The staff were attentive and able to recommend other places (e.g., two restaurants down in Kona, about 30 min away). The restaurant was moderately busy and the conversation at other tables made it sound like they enjoyed their food and received good service too.
Now, for the food. It was decent thai - not my favorite but satisfying for someone who had been making do with eggs/no carbs and smoothies for too long. We also are vegetarians (making it even harder to find places for me to eat) and I think they may have not known how to spice our food without oyster or fish sauce. My bet is they are pretty good but we threw them off their game. This was our last night on the island or we would have gone back. We will go back on our next trip so I'm willing to recommend Charley's to others.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.