"Dear [Restaurant Name],
I wanted to take a moment to share my recent experience at your establishment. I've noticed a decline in the quality of the food that has me a bit concerned. In the past, I've thoroughly enjoyed your sirloin and T-bone steaks, but my latest visit left me quite disappointed.
After a long road trip, my daughter and I were looking forward to a wonderful meal. Unfortunately, my T-bone steak did not live up to my expectations. Instead of being the red, juicy, and tender cut I remembered, it was a dull grey, quite thin, and rather tough, making it difficult to enjoy.
I know you have the capability to provide better quality, so I urge you to reevaluate what you're serving. If it's not something you'd be willing to eat yourself, it might be time to reconsider your options.
Despite this experience, I plan to return, as I believe everyone deserves a second chance.
Thank you for your attention to this matter.
Best,
Rick"