Delicious.  The fillet mignon is outstanding, as are the crab cakes.  Our server was spot on.  The interior is very classic steakhouse, all dim lighting and dark woods.  Very nice.  This was my wife's birthday dinner and they went all out to make the evening special, including a card signed by the staff and a free taste of their amazing lemon cake dessert.  Del Frisco's is off the Strip (thankfully) and well worth the trip.  Recommended!