Oddly enough, it was a negative Yelp review that drew me to Diamond's in the first place (a review I see is no longer on Yelp). But after putting up with crappy service just to get the Sourdough burger I love, the argument with a man who was either the GM or the owner about whether a service dog could come in his bar was the last straw.
I'm not sure why he thinks he can refuse service to someone coming in with a service dog, but that was the last straw for me.
I will miss the Sourdough Burger, but trust me when I suggest you find a nicer place and ask them to make a Sourdough burger (on sourdough bread with grilled onions and cheese).