I've never eaten at Oyster Bar until yesterday. However, after seeing the giant poster for the Herring (on or about June 6th) I had to stop in.
Have to say, it is very nearly as good as it was in Holland the one time I had it in season. It comes on a plate with the chopped egg and onion and I suppose you could pick it up by the tail (although a knife and fork is provided). The Reisling I had with it was very good, but at $9.50 a glass I didn't order another.
The season only lasts another three weeks or so. Have to say the atmosphere was festive, the service was friendly and there was a charm to the whole scene I didn't expect. I had been led to believe the Oyster Bar was a tourist trap with few if any redeeming qualities. I was misled and will be back for more.