Mioposto is a friendly neighborhood cafe in a nice 80-yo brick building in the Mt. Baker neighborhood from the Seattle Eats portion of the Chow Foods breakup. It is family-friendly, so if you'd rather have a peaceful drink and/or meal without noisy children, I'd recommend going in the later evening hours (not too late, though, they close at 11:00). That said, it is well worth the wait.
They remodeled in late 2011 and reopened with a small cocktail bar,
which they call "Cece" (Italian for chickpea, inspired by the small
size). The drinks are good and the food, from the appetizers to the
wood-fired pizzas to the desserts, was all quite tasty. In addition, we had super
friendly from everyone we interacted with (which was, I think pretty
much all the staff working that night from, including the cook), including when we did things like deciding to change where we were sitting.