Well, I finally got there to see for myself. Attended a "tasting demonstration" over a year ago; couldn't wait to have dinner there. Friends, and posters on Chowhounds had mentioned how tiny the portions were, but let me tell you: those portions are indeed tiny.
Started with a sweetbread first course that had all sorts of goodies with it--fruits and nuts I guess. Relatively speaking, this was a decent sized portion. I cannot remember having eaten more superb sweetbreads anywhere. Sauce was bread-scraping luscious.
Duck breast came rare, napped by a wonderful sauce, accompanied by more fruits and nuts I think. Large, beautiful plates, little resembling veggies, but a presentation of salad, sort of, making for a stunning plate with not too much food on it. Loved it, but definitely wanted more.
A braised veal dish was truly tiny--stuffed with a morsel of sweetbreads again, topped with a perfectly poached egg. Sauce out of this world. Would have been thrilled if portion was triple the size, which it wasn't of course.
My companions loved their dishes, but only one was a decent size--lamb shank, that I was lucky enough to be "gifted" with a large taste by it's orderer.
Desserts were visually lovely, tasty, but again, quite small. Extras included a bottle of champagne, bowls of assorted homemade ice cream and sorbets, a plate full of tiny, but quite wonderful on-site made candies. Coffee added $3.75 to the $55 prix fixe.
Room lovely; service gracious and attentive without being overbearing. I was glad I came, but left feeling underfed in terms of quantity. For people who complain about obscenely large portions served in many restaurants, La Croix was heaven.
My three companions left feeling well satisfied; I enjoyed the whole experience, but could have easily relished twice the quantities overall, and would not have been stuffed. A class act, but no one need feel guilty afterward.