Kenzo Ramen is a small restaurant that seats about 30. Most tables are for 2 people (although they do have accommodation for larger groups). There is a bit of Japanese decor on the walls and the tables are metal but provide decent seating. There are usually a small number of staff on hand but the restaurant always runs quickly and smoothly, even when it is packed to the brim with a line out the front door.
I ordered the Tonkatsu Ramen ($10.95) when I was there last Sunday. The other time I visited I got the same but with double toppings (an extra $3 charge). Neither the noodles nor the garnish/toppings were anything special- more or less standard ramen noodles.
The broth was excellent. It was a creamy sweet and slightly salty pork bone broth. I usually don't finish the broth when I go out for ramen but this was certainly an exception.
The service is impeccably fast. I got my food and drink (matcha iced latte, $3.95) within four minutes of ordering each.
Kenzo lacks in its small variety of menu options, coupled with OK noodles and expensive matcha drinks. What you gain in fast service you lose in menu options and quality.