Filthy ugly place. Terrible service. Bad quality food, badly prepared.
Rips in upholstery everywhere. Carpets worn through and absolutely grimy. Most hard surfaces are sticky with dirt. My burger (pretty much the most standard easy item that can be ordered in a diner) was served very well done. I had ordered it medium rare. However, considering the quality of the meat I think perhaps they burnt it for safety.
The grossest part of the experience was watching the waitress openly stuffing her mouth with leftover food from plates right at the tables, just as soon as customers walked out. I witnessed this several times. Once in fact when I signaled for the check and her mouth was so full she could not respond. So she pointed at her mouth and gave me a thumbs up, I guess implying "My mouth is full of table scraps so I cannot speak at this moment. However, I recognize that you've stopped consuming your disgusting burger and are requesting the check. This actually works out well because I noticed you only managed to get halfway through that burger and I'm still hungry. So I'll hurry and get your bill if you could go ahead and get going just as quickly as you can. Thanks! Hope to see you again soon!"