As much as I'm a proponent of neighborhood restaurants, I have to be honest - I found Dragonfly to be terribly overpriced with meh food. Sushi and other dishes were fine, but not memorable and very small portions. $14 for three potstickers? Really?
Service was friendly, but somehow our coats got locked in a closet (?!) so it took us about 15 minutes to actually leave. To her credit, the manager bought us a round of drinks while we waited for someone to break into the closet, but at the point we really just wanted to get out of there.
A much better value can be found at a plethora of other places in the neighborhood. For the money, I'd much prefer to go to Crop or Flying Fig. If you're looking for sushi, Sapporo on E.6th is fantastic, although no glitz and glam.