Four of us ate at the Jefferson over the weekend.
1.) Terrible service. A new bartender didn't know how to mix drinks (how hard is a vodka gimlet to make?) and when asked, the waitress knew very little about ingrediants in each dish. Worse yet, she made stuff up.
2.) The food itself was edible but hardly worth the prices (nearly $80/person) with one glass of wine/person. The lamb was chewy and the fish was, well, fishy.
Stay away from this place. I wouldn't go back.