Just one of a handful of new Vietnamese restaurants in the Concord area, and in my opinion, the best of the lot. They have a huge selection of pho that comes in 3 bowl sizes, (XL could feed an elephant!) and the soup is good enough to drink plain, without noodles. I don't say that often. They also do nice versions of dry rice noodles with grilled chicken or beef on top, and some rice plates.
I didn't think the appetizers were anything special, but a must try are the ice blended boba drinks in exotic flavors like durian, mango, and soursop. My all time favorite is the avocado. Sounds strange, but I swear, you won't be disappointed.