The house was fine, it had some highlights and lowlights. You can tell that the house is outfitted as a rental with nearly everything being builder grade and sparsely furnished.
The highlights were nothing beyond what is described in the listing, a modest size house that is close to old town so you can walk into the city. The listing states it could host 11 people, we had 6 and it felt full.
The upstairs room situation was very unique, there is a large master room, an attached room and a full bath. The attached room via glass doors is sold as a separate bedroom. But you have to be "close" to your other guest as you are separated by a glass door with blinds. So there is no sound privacy. And unless you want to walk through their room you have to come and go via the bathroom. This is very unconventional and should be explained better in the listing.
In summer there is no AC, common in steamboat, but we found it difficult to cool the upstairs master at night because it is in the sun all day long and the walls get hot and you can't get a thru breeze unless you open the door to the connected room (which as described earlier you wouldn't want to do unless you were close or were fine with zero privacy).
There is no shed as described in the listing.
Other guests mentioned that the master bath shower drains slow, we experienced that as well.
The water heater is small and will only stay warm for about 5 showers, one of our 6 people always had a cold shower. No way that you are comfortably showering 10+ people, especially in winter.
One city trashcan outside which was half full when we checked in meaning we overfilled it after a few days.
Kitchen had a good assortment of cooking, serving trays, plates and cutlery and the spice cabinet had a good assortment of left overs so we only had to buy oil in addition to our food, not salt and pepper etc.
Checkout was simpler than most as we didn't have to do anything with the sheets.
It is not a vacation rental "by owner" it is managed by a group of rental properties and you communicate with them via text after checkin.
Overall I would probably stay there again but only after knowing these things about the space which were a little bit misleading in the listing. Due to the misleading listing I would be cautious as a future renter to read and be sure it will work for your group.