I have been to Skillet diner many times and it is good solid upscale diner food. I have to say, though, that for the first time, I noticed that they charge a 5% service that is automatically added to your bill. Your server never says a word about it (on any of the 4 or 5 times I have been there), so I assume it has always been there and I just never noticed it. I'm totally fine with a service charge, I actually prefer when restaurants just straight up charge the 20% that gets distributed to both front and back of house, but I have never had a place where it is charged and the server does not mention it OR there is just no spot for gratuity on the credit card receipt. Then, Skillet puts the various amounts for 15%, 20% tip etc. listed on the bottom as many restaurants do (AFTER tax, I might add, which again, I don't think is appropriate). So, I tipped 20%, then noticed the small print that they had already charged me 5%. Seems a bit unfair that they didn't mention that in the first place. I left my tip as written, but left with a not great feeling about the place.