Went to this Denny's a few weeks ago and here is the breakdown
Service 3/5
The waiter was nice, very polite, it wasn't overly busy but he seemed to disappear for extended periods of time, I wanted to order a drink but had to wait about 5-7 minutes before I could flag him down.
Food 2.5/5
I ordered the t-bone steak with hashbrowns and fries, I asked for the steak to be well done but it looked like it was very very well done, very dry and I could not eat it without pouring hot sauce and ketchup on it however, the milkshake was great, the waiter brought the glass he made the milkshake in addition to the 1 glass I ordered (he said he made a little extra and didn't want it to go to waste so he offered me the extra)
Atmosphere 3.5/5
Well lit, clean and the tables were nicely set up (not too much privacy but whatever)
Will probably go back there just to give them another try... I still believe the t-bone steaks are great there - they just need to be cooked to my likings ;)