Space and location, but that's about it
We liked the location of this hotel. We found many places were within walking distance or a short drive, and we liked staying in an area that felt more like a neighborhood than a tourist thoroughfare. Our room was incredibly spacious and we loved having the balcony, which had views of the mountains. The free parking was a main reason we chose this hotel. However, next time I'm in Denver I will stay somewhere more comfortable. 
Overall, it felt like we were staying at grandma's musty old house. The room seemed half updated. The bathroom was pretty nice, but there was no fan and it had an odor. The hairdryer broke while I was using it. 
The bedding was OK. The bedroom was pretty hot and we never quite got it cooled down despite turning the thermostat all the way down. The only power outlet in the bedroom was behind the bed, so it's hard to plug your phone in. Many hotels have lamps with additional power outlets in the base, but the Burnsley decided not to upgrade the lamps. 
The kitchen was pretty dated and made the rest of the room look old. The furniture was standard hotel furniture but some items were broken or very worn, as another reviewer mentioned. Our lamp was very unsteady. It did look like they updated the floors. 
We also had issues with the service. The shuttle is great when it works, but for me it was only about 30% reliable. Once they quoted me at 25 minutes, but it took nearly 45 minutes for them to show up. We needed more towels but they did not come and we had to call again. A few times I called the front desk and it just rang with no answer. The internet was slow. 
I can deal with a little quirkiness, but the Burnsley has a few quirks too many.