Their one million and one possible mix-ins might be overwhelming to the indecisive such as myself but it's still a pleasure to stare uselessly at the board, trying to see which mix-in, or two, or three, would go with the ice cream flavor you want.
You have a choice of how big a scoop of ice cream you want. They get the ice cream from Dave and Andy's (god I wish we had this in NYC...). I went with the French Vanilla base, and added fresh mint and Heath Bar. Yumyum. Refreshing, crunchy.
Oh Yeah!'s employees are always friendly so don't be shy to ask for mix-in suggestion. "Love" and "Squirrel meat" are also options but...
Ambiance is fun- there's no lack of interesting knickknacks to check out while you wait in line (check out the bathroom!)- and very laid back.