Horrible service. I've been here 3 times and I always get bad service. I just had to write a review for what happened today when I went there. Me and my family waited about 40 minutes for food that never came. We asked the waiter and she just said I have no idea. They seem so careless about what they do. The manager told us they will have it for us soon but 10 minutes passed by and still none so we decided to leave. They didn't even offer us the free meal for such a long wait. (This review only goes to the Denny's Irwindale.)
This is my favorite Dennys. There's a dennys right down the street my house, but I always hop on the freeway to get to this one. The customer service is usually good and their food is better than the other ones.