I've never been a fan of the food at Biergarten. The last time I ate there was in 1996, so unless it had improved since then, I'll pass.
I also agree that taking off the hot buffet at Akershus was a bad thing. I love it there, but I don't want a HUGE plate of the hot food I want to try. I hate wasting food.
The restaurant that most underwhelmed me for food and service was Big River Brewery on the Boardwalk. The food was mediocre and the service was bad, from the person who did the seating to the server. Lackluster.
Biggest disappointment in recent years: Flying Fish Cafe.
I had a wonderful meal there years ago, and I returned there again in 2002. They had taken one of their signature dishes off the menu (the red snapper....but I had heard they put it back!), and we all agreed that the quality of the fish we had didn't match the price.
Best meal I've had recently: I had a terrific experience in Jiko in May. I dined solo, so I ate at "The Cooking Place". The chefs, the server, the food.....all made a great experience for me.