The order was sent on 4.2.2014. Boards were shipped on 13.2.2014 and delivered on 24.2.2014 to Czech Republic. 3 weeks from ordering – not bad!
I sent it with vias 0.8/0.3mm but smallest drill is 7 mils =~ 0.33 mm. It seems that it was not a problem. Drills are a tiny bit off, no big deal:
Silkscreen quality is also very nice. They do not provide an e-test. They have an automated optical inspection.
People had few issues with OSH Park.