It's a Denny's with a retro look. I spent a couple weeks in the hotel next door so I ended up eating there a lot.
The food was remarkably good including two separate times when I got prime rib dishes and the meat was tender and tasty.
The service was generally good but I tend to think they have high turnover after over-hearing a conversation between a cook and a server implied that they had a lot of new people.
There was one waiter that I had repeatedly and his service was outstanding.
Overall, if you've been to one Denny's you've probably been to them all but if you haven't been in a while it might be time to revisit this chain.