Every experience I've had here has been great - the employees are nice, the smoothies are made fast and *bonus* if you use your Vons Rewards Card, you get a free smoothie after 7 smoothies.
I have two smoothies I love: the matcha green tea mist and the (seasonal) pumpkin smash.
Can't miss it, either - it's right in front of you when you walk in to the grocery store.