I received my first boards from OSH Park today. I was curious how they'd ship them, they're in a padded envelope just flopping around loose. That's not an issue, just an observation.
My initial assessment is they're decent quality boards. A couple of nits. They didn't clean off the nubs from the panelization very well, and the exposed gold plated copper is not tinned. It remains to be seen if I'll have any issue soldering to them, but I suspect not. These three are certainly worth the $4 I paid for them.