ZEN's mission statement is "To maintain respect while consistently providing top quality food and service" - and I'd have to say they definitely honor this.
I've frequented this sushi place over the years and have always had a great experience - awesome fresh food, great atmosphere and service. My favorite appetizer is tied between the spicy scallops and prawns and the agedashi tofu. Their salmon sashimi is marbled perfectly and the volcano sauce used for the spicy tuna rolls is amazing!
With quality does come price - it is a bit expensive here, a lunch can run from $30-$40 easily. But I think it's nice to treat yourself every once in a while - especially when it comes to delicious food :)