TL;DR: it's a beautiful space with a surprising amount of amenities! Not ideal for noisy guests (sound bounces a lot). Overall, would recommend...Bedding was very comfy!
Dissertation:
It's a beautiful and well stocked space. I hadn't realized it had a washer and dryer which was a very pleasant bonus. I appreciated the filtered water pitcher, everything was extremely clean. 2 key fobs were easy to use (though one was not working). The building's lobby staff are very nice and helpful. If you time it right you can nab one of Black Box Bakery's pastries, they're the bomb dot calm (order 2 days in advance on their website if you want some for yourself!) Building was well within walking distance for public transit and Whole Foods. Even though it was downtown, Denver doesn't seem like a particularly walkable city (coming from a NYer, take it with a grain of salt!). There are a significant number of homeless people camping in the area. Security does its best to keep them moving, but it's more of a Denver problem then a MH problem.
We had a service dog, of which MH was accommodating, although due to the echo of the room (concrete floor and high concrete ceiling), I felt extra anxious about making too much noise, specifically if my dog barked. I read somewhere that they have a device that measures the noise threshold, possibly to help enforce quiet hours. I believe the building is also shared with permanent residents. I don't know if it was just because we had a dog, but by the our last day (4th) the room got very dusty.
Except if we walked in the halls, we never heard our neighbors...except in the morning when I'd hear a neighbor raise their window blinds (just a touch creepy)