We had a great time in Denver staying at Richard's place. He is a fascinating host, with a lot of recommandations. If you are looking for the "hotel" experience with little to no communication with the owner, this Airbnb is not for you! We were 3, and we really enjoyed staying in a house where someone was actually living. You have everything you need in the kitchen, you can discuss your plans and don't hesitate to ask for restaurants recommendations. There is an organic grocery store a couple minutes away.
I highly recommand staying at Richard's! (Apart maybe for peoplewith strong allergies. All the bedrooms floors are carpeted, and there are some pets living in the common areas downstairs.)