The Denver Marriott Tech Center...

Liked: The Denver Marriott Tech Center is a real winner. Check-in and parking are easy. The staff is professional and friendly. The restaurant is REALLY good. Everybody appears to enjoy working there. We have stayed there twice. This hotel is a go-to for us when traveling to Denver.
Disliked: I wouldn't change a thing. No complaints. No problems.

Liked: Large rooms.
Disliked: Paid for parking

Liked: The room was very clean
Disliked: No

Liked: Very clean facility, and friendly staff. Decent sized room, and quiet (very little ambient noise from the hall and adjacent rooms).
Disliked: Better signage for room locations. There is not even a minimal table in the room. Would have been nice to have a table for at least two people to sit together to eat or play a game in the room.

Exceptional

Won’t be staying there again.

Liked: The countertops
Disliked: Dolly was broken, center door swung way too fast, I was in a boot so trying to move fast enough before it hit me was awful, the batteries in our room door were dead so when we got to our room we had to wait half an hour before we could sit down and relax, toilet seat was extremely wobbly, the shower curtain was gross. For a 360$ stay i felt like i was at a motel 6.

Superb

Liked: The accommodations were spacious, well-lit, and the furniture really comfortable. The public areas were also open, and well-maintained. Even relatively quite considering the size of the crowd there for the dance competition.
Disliked: So far as we could tell from the materials provided there was no breakfast. We hauled in all our own food. I'm used to receiving a complimentary breakfast for that price.

Pleasant

I’m never staying there again.

Liked: What breakfast?! You had to pay extra. You would think for the price paid it would be included!!!!
Disliked: Breakfast wasn’t included