Denny's is all over the country, so you can at least count on knowing the menu when you walk into one of their locations. That's all. Their "Grand Slam" breakfast isn't much of a grand slam, in my opinion. You can often do better, quality-wise, with a local diner. Denny's is past it's prime and needs to get up to snuff. They still do a good business because of their low prices, but to get repeat customers they need to work on the quality.