King's Fish House is in a nice location at The District at Green Valley Ranch. The design of the restaurant is nice, and it is a comfortable place.
I have found the service here to be reasonably good. However, I am not a big fan of the food - it is serviceable, but nothing remarkable. Sushi is not worth ordering here as it doesn't compare well to sushi restaurants that focus on this type of cuisine.
Other dishes, including the fresh fish and sides, are ok, but, again, nothing remarkable.
I do like many restaurants at The District (Lucille's, Kennedy, Settlebello), but this one just doesn't offer anything of great interest of exceptional quality in my experience.