I love Denver. I enjoy Breckenridge's beer. If you're doing a tour in Denver, I think this is a good reason to start for some reason. Maybe it's because they have a wide variety of beers, but not are really palette wreckers.
The location is in a good place in Denver with easy accessibility to other beer places as well. I must admit, I don't think in the two times I've visited here (on separate trips to Denver) that I've ever eaten here. As a matter of fact, I believe both times I've just sat at the bar and drank samplers.
You'll find a knowledgeable staff and a pretty reasonable offering of their beers in a flight. As you can see from the pictures there are 4 tastes in a flight and you may as well get two and try a good chunk of the beers on tap. It's a good place to try some beers and enjoy some company.
Check out their website for more info.