Tender is a steak and seafood restaurant located in the Luxor hotel in Las Vegas. The document summarizes the author's experience at Tender. The food is described as divine, with excellent caprese salads, seared tuna, and sides including asparagus and truffle mashed potatoes. The atmosphere has dark wood paneling and lighting that makes the author feel like they are in an episode of Mad Men. Conversation between the patrons is described as delightful and wide-ranging. The service is praised as attentive, informative, discrete, and flexible, with the server acting as an unseen guide that orchestrates the meal without becoming the focal point.