I've been to a lot of Korean restaurants, including ones in New York City. I visited Nak Won Garden twice. Once I had Budae Jungol, which was good, but didn't settle with my stomach too well. I also had one of my favorites, jjambbong, and it was the most unimpressive jjambbong I've had. There was a lot of squid, but only one clam and one shrimp. The soup was not as rich as many other places.
Service:
The first time I was there, the restaurant was really busy but the service was good. The waitress came to check on us often. The second time was during mid-afternoon when it wasn't busy at all. But the waitress came only in the beginning to take my order and then at the end to give me a check. It was like she was waiting for me to leave. It didn't feel very welcoming.