Grew up in Thornton, northern suburb. Got tired of the political climate and the idiot drivers, moved to small town South Dakota. I did all my shooting at an outdoor range up north on Hwy 7 just off I25. Sadly, it is no longer there, was torn down to make room for housing development. Only place I would go shooting around Denver.
I've never been there, but on another website that gave reviews and feedback about different gun stores, Gunsmoke ranked VERY low. It said things like: service is poor, they're too pricey, slow to do repairs, unresponsive in many ways, etc.