Houston's has a dedication to excellence the like of which I have rarely seen. They strive perfection at all times, even down to the smallest details.
Have you ever noticed that every server walks in a clockwise fashion around the room? They'll walk 50 feet out of their way just to avoid turning around and going against the flow.
The food is great and on that rare, rare occasion where they do mess something up, they are guaranteed to make it up to you.