We stayed there for 3 weeks.
The bathroom is spacious. There is an in-unit washer and dryer. They have a big toaster-oven like thing upon request and there is a portable induction stove with induction pots.
There is a door that connects the main residence to Airbnb. Bill and Linda use it to hand off things that we needed (mail packages, batteries for the remotes, the big toaster-oven mentioned before). They always knock and wear a mask when they enter the space, so this was fine for us.
Their hot water came out quickly and was very hot, so that was a plus.
With regards to the location, it was near big roads/highways, so it was pretty straightforward to go to places we wanted to go (Breckenridge, Boulder). The place was also near a grocery store within walking distance (Sprouts) and within walking distance of Tennyson.
Bill and Linda were very good hosts. They always responded within a day, told us when they were going to be available (which was not very often), and told us some recommendations when we asked. They warned me about an incoming arctic blast when I was headed over and they reached out to us after our first week to make sure that we were doing alright. They mostly left us to our own devices, which is what we preferred.
The only negative that we had was that the internet was spotty sometimes (not during the day when we worked but mostly in the evening when we were watching stuff). Also, our Nintendo Switches could not connect to the internet at all.