First experience to Umami Burger based on friends recommendations- in fact they cam with us. Lunch on a rainy day so the place wasn't packed. Ordered the "Manly" burger with onion rings and cheese poppers. Burger was cooked as asked- medium rare, onion rings had three kinds of dipping sauce. Very good service which is always a plus.
This is one of those places that after you leave you think: I will come back if friends go. Not that feeling that you need to rush back to.
It's a burger joint and burgers are either great or not. There are a couple other burger places in Thousand Oaks that I feel are much muh better- not only quality but price.