I've been trying to get to the Hotel Utah for a burger ever since reading Zach's valentines post. I've always thought that the Utah was pretty cool. We occasionally stop there for beers when we're early for our train. I didn't know they served food though.
Anyway, I have to concur that it's a darn good burger.
Incidentally, the 1st and 3rd Sundays of each month are reserved for bluegrass ($5 cover). The music was pretty great this week. Also, the crowd is light on Sundays and it's easy to find a good seat.