Four of us (two couples) just returned from a four-night stay at Jack's, and I simply can't recommend it enough.
From the moment I first made contact with Jack he was friendly, courteous, and quick to reply to messages. Was always willing to answer questions, make recommendations, etc.
The house is EXACTLY as pictured. Cool, funky decor. Spotless. Awesome hot tub. Big bedrooms with comfortable beds. Couldn't ask for anything more.
The neighbourhood is great - close enough to walk to downtown, and lots of amenities nearby.
We're already thinking about our next trip to Denver, and we'll be crossing our fingers tightly that Jack's house will be available again.