Sthef is a lovely host and I had a great time. Sthef was always very helpful and had great tips on what to do in Denver. Sthef even lent me clothes when it got surprisingly cold and was always very friendly. The room is very nice and the bathroom is also equipped with everything you need; including towels, which was handy since I was flying. Extra points also for the cute dog :)
The house is very central and you can walk from there to the center if you like walking. However, if you are traveling alone, I would rather recommend driving or taking Lyft or Uber in the evenings, as I didn't feel so comfortable in the area in the evenings as a woman travelling alone.
Overall, I can only recommend the stay at Sthef, I felt very comfortable and would love to come back if I'm ever in Denver again.