OK.
I read all the reviews before hitting this Denny's after dropping my wife off at Sky Harbor. It seems a lot of complainers like to post on Yelp and I thought I'd give this restaurant a chance. Glad I did.
It was 4:50 AM when I walked in the door and there were about six tables busy. The one waiter/cashier guy greeted me with a smile and got me into a booth within a minute. I ordered fast and my food was out in less than ten minutes. The omelet was huge and yummy and the hash browns were awesome. My bill was there as I finished and I was on my way.
For the people complaining about the ambiance or the service, a reminder: This is Denny's. Sometime it gets busy. Sometime the wait staff get a beak because they think they deserve to be doing something else and take their bad life choices out on their customers -before they get fired. My experience was pleasant and the food was good. Yeah, this location was probably remodeled a few years ago but, Hey! They are open 24 hours! When do you think they get a chance to buff down every seat and shampoo the carpets? Likely during the next remodel! The only visible sign of damage was a sliver of Formica that somebody broke off, likely with a vacuum cleaner. Did it ruin my meal? No.
My only compliant was the AC was set at about 55 degrees but I know it will be a great atmosphere in a month or so here in Phoenix. For that I ding them one stinking star but, I'd go back If I pass that way again. I'd just bring a sweater.