We went to Lassen's for the first time today and were very pleased overall. It's definitely tight inside, but it's worth it for all the great stuff. Look everywhere in order not to miss something. The parking was a bigger problem as there's only a few spots right outside. We had to park at a meter on the street.
While the store is not vegan, there is a ton of vegan stuff and there is no butcher counter like at Whole Foods, so it was less traumatic to shop here. We got a peach smoothie from the deli/juice bar while we shopped. Very tasty! The produce is fresh and appears to be all organic. The bulk section is fantastic with many hard to find items. There are all the usual dry groceries as well as refrigerated, frozen, beauty and vitamins. We will most definitely be back. I just wish they were open on Sundays too.
Cons: parking, not open Sundays