This is a perfect choice for a couple visiting Denver who plan on being out and about most of the day. Great location, just a short walk to the light rail station as well as the supermarket and other essentials. We found it easy to get just about anywhere accessible via public transit. We also rented a car and while parking is definitely not a painless process, Pauline's suggestions helped a ton (YMMV of course).
The space itself is clean and has all of the basic amenities. If you plan on being at the Airbnb most of the day during your stay, you might want to opt for a space with more natural light and fancier amenities. That's certainly not a dig at the space itself, I just feel like it was most useful for our use case - a place to relax and crash for the night after long days of exploration and not lounging around the Airbnb all day.
If that sounds like your itinerary, then I highly recommend considering this space, it was absolutely perfect for our needs and Pauline and Brooke were super communicative and helpful!