I love locally owned and operated coffee shops. What sets SB apart from most is the extremely friendly service, homey atmosphere (with fast free wifi) and great drinks/food. I typically go in for coffee for my wife, hot chocolate for our son, chai for me and baked goods. (They always ask, how old is your son and make the hot chocolate a) to the right temperature for a 5 year old so he doesn't get scalded and b) mostly whipped cream). It shows they care about the needs of their patrons. The morning fare is varied, but i am in love with their AM burritos offered in multiple flavors. Plus their baked goods are just lovely -- home made daily from scratch, the opposite approach to Starbucks. They have a wide variety of custom breakfasts and lunches, too.
Go, you won't be disappointed. I stop in every time I'm in Mammoth. Friendly and fulfilling.