We could talk about A5's thoughtful sourcing of some seriously high-quality beef that's always cooked just right. Or about the fact that you don't even have to order steak at all to have an indulgent, memorable meal here, with options like oysters, the beef tartare katsu sandwich and the French dip (which is available only at the bar). But what we really love about this restaurant, which joined the scene in 2021, is that it's downright fun, bringing fresh energy to the classic steakhouse concept that was once the darling of the Denver dining scene.