Overall, this is a lovely place to stay. Space and amenities are as advertised. The apartment is clean and the bedding is soft and comfortable. The location was really convenient for me. I particularly appreciated the easy check-in and communication with the owners.
There are a few things that could stand to be improved:
a) temperature. Denver is hot in the summer. When I checked in in the evening, the AC was off and the entire apartment was stifling. The one AC unit works, but really the apartment could use a unit in each bedroom. I say this as someone that generally defers to fresh air/ceiling fans over AC, so if AC is a requirement for you, you might not be comfortable sleeping here. (I didn't get a good night's sleep that first night while the apartment was still cooling down.)
b) light in the bedrooms. I am particularly sensitive to light at night, so this may not bother others, but even with the curtains, there is a significant amount of city light coming through at night.
c) the sofa is about as comfortable as it looks in the photos (meaning not at all).