The 2d6 Feet in a Random Direction podcast gave glowing reviews to KQ and Open Design in their latest installment, Episode 46.
The show is a project of Brian Isikoff and Chris Hanranhan, an owner of the Endgame store in Oakland CA.The whole show is worth listening to, though if you are mostly interested in their commentary on Open Design it starts around 21:20; the KQ review leads.
Summary: Open Design adventures are described as “WotC quality”. Which rocks, and perhaps is not all that surprising, given how many Open Design artists, designers, and editors have also worked for Wizards of the Coast.