Since there are not many restaurants to choose from in Volcano, I should really say that of what is there, I'd give this 5 stars. Against other Thai places, though, it is more fair than fabulous.
The Summer Rolls are a definite must taste--of the 2 meals we had at Thai Thai these were easily the best item we had. The portion is heaping and the vegetables fresh.
For entrees, we were not impressed with the Pad Thai, though the curries were good. I'd recommend the green, and be clear about your desired heat level--they mean it when they say hot.
Service is good, but very slow which contributes to the 3 stars. You'll need to ask for the check....and then maybe ask again. We were curious to see if this was just our server on our second visit, but no--we were waiting card in hand again.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.