tl;dr - Check-in communication and front desk staff not reliable. Room was nice and clean, is not the same set up reflected in pics in listing if that matters to you. Great location, right next to CVS, whole foods, Union Station.
My stay began pretty frustrating but went well from there on out. First, be aware this is not your typical Airbnb, it's a company that manages an apartment building and AirBnbs some of the rooms so you will be communicating with company staff, which I didn't realize at first or think would matter even after I figured it out. I was told I'd receive information for getting to my room the day prior to my arrival. I did not, and on my day of arrival I sent Sentral a message letting them know I hadn't received it and they told me I would get it by 3 pm. I was flying into Denver all day so by the time I arrived in the evening and saw that I still had not received any check-in info, I was concerned. I messaged them again requesting the check-in info. While on the train into Denver I did receive a call and they said they could let me into the building right then if I was outside, but I let them know I wasn't there yet and was on my way from the airport. They sent me a code to enter the building and said to check in with the host at the front desk.
Upon arriving to Sentral the door was locked and the code I had wasn't working. There were also 2 different keypads and I wasn't sure what to do. I could see inside to the front desk, but no one was there so I couldn't wave anyone down. I called the number listed and I was sent to a woman in another state who had no idea how to help me but said she would try to get ahold of the folks in Denver.
I was standing outside with my suitcase in the dark for a good 10 minutes before a stranger entering the building let me in. It's a bit sketchy in that part of Denver, especially at night so I wasn't too happy at that point, especially since it was obvious I was from out of town with my suitcase in tow and I'm a rather petite woman traveling alone.
I waited for another 5-10 minutes for someone to arrive at the desk. She was nice, but breezed over the details to accessing the building, elevator, room, etc pretty quickly and then tried to tell me details she had forgotten as I was getting on the elevator and the doors were closing.
The rest of the stay was fine, everything was super clean and the room was beautiful. The building itself was really cool - felt like a luxury dorm, where the fitness center and all sorts of public hangout areas were connected in the middle and there were lots of folks milling around. There was a pretty nice looking pool too but it wasn't warm enough yet to swim unfortunately.
Overall the stay was good past night 1, but I won't be staying again as the lack of communication and accurate info left me feeling unsafe and annoyed.