Del Frisco's serves up, as far as I'm concerned, the best steak dinner in town. I'm very familiar with most of the other good steakhouses in Vegas - Charlie Palmer's, Joe's, BOA, etc -, and while they all serve a fine steak, Del Frisco's manages to outdo them nearly all the time.\n\nFood: The porterhouse is the best I've ever had, and it never fails. Very tender, flavorful, and all around a great cut. The Double Eagle has always been a bit of a let down to me, but maybe it's just shamed by the porterhouse. The filet mignon is also excellent, and very tender, but not that much better than the competition. The sides & appetizers are also great. The calamari is excellent. Very tender, and not overly breaded. Mushrooms and creamed spinach are great side dishes, but their \"signature\" macaroni & cheese doesn't do much for me.  I enjoy the chopped salad, but it's not as exceptional as the steaks. Desert wise, I always get the chocolate mousse, and can definitely recommend it - but how hard is it make a good mousse? \n\nService is usually impeccable. Staff is very friendly, and food is delivered promptly. We arrived late once for a reservation, at about 10:30pm (closing time is 11), and they sat us without batting an eyelash and never made us feel rushed, even as we lounged around far past closing.\n\nAmbience is nice, but not particularly extraordinary. A little more business than luxury, but I really can't complain. You don't have to put too much effort into dressing up, but it's definitely not a t-shirt and shorts kind of place (Although I did show up in shorts once & they didn't give me a hard time). One downside is that due to the oppressive Nevada smoking laws they've had to disallow cigar smoking - even in the cigar lounge! There used to be no better way to spend a evening in Vegas, but what can you do.