It's a great little space for one or two people who want to explore the surrounding areas. Not sure I'd try to squeeze more than two people though.
The apartment itself is small, but cozy. Super comfortable bed, the bathroom was clean and, even the pull-out couch was really comfortable (I had a friend visit for a couple nights and said it was perfect).
It's a pretty quiet, residential side of town...but you're only about a 10-15 minute walk to some great bars, restaurants, markets, coffee shops, etc. I joined the local bike share and regularly biked down town to see live music, explore other areas, etc. It's a really easy city to navigate.
A few of the reviews mention that the neighborhood was "questionable", but that wasn't my experience at all. Everyone I crossed paths with (including the other folks who live in the house) were super warm and friendly.
Overall, a great experience and I'd absolutely stay here again when I head back to Denver.