I have now been to Ah-So a handful of times. I really loved my first visit, but each time since has been worse than the last.
The biggest issue here is that everything is way more expensive than it should be. The service is pretty good and the servers are usually there to get what you need. The food is good, but has been slipping a little. Overall, I enjoy Ah-So, but the prices can no longer justify the experience. I would highly recommend going to Benihana instead for a much better value.