Commonplace brings something different to the coffeehouse that I haven't seen elsewhere - cold brewed coffee. For me, that alone was worth checking out. Although I don't have iced coffee often, this was smoother than anything I've had before, with very little bitterness.
My wife ordered her usual - a soy latte - which wasn't the best, but decent enough. The soy milk here (they use Silk) is a bit overpowering, but if you like creamy drinks it will likely please you.