We've never been to Japan, but The Sushi Den is, hands down, the best sushi we've ever had, period! Having lived on the beach and being ravenous sushi eaters, we've always been skeptical about sushi that requires shipping. However, this place does it right! The owner's family lives in Japan and overnights fish a few days each week that you simply can't get elsewhere. Don't go by the online menu only, as much of the menu is built daily, depending on what fish they get. While you can certainly go as expensive as you want, the prices are very reasonable for this quality of food. It's well off the beaten path, and aside from a plaque in the wall, and a line of valets on the sidewalk, you'd never guess Denver's best kept secret lives there. There is no possible way to overstate the absolute perfection that is delivered to your table with each and every bite.