I read about half of the first issue last night, and it's pretty darn good -- way above my expectations, really. The Mona interview is great, and the "Ecology of the Derro" has some sweet little crunchy bits I'll try to work into my game soon.
I would expect the proofreading to get better as Wolfgang writes less of the content and focuses more on the editing.
All-in-all, I've been very happy following Wolfgang on his (seemingly) Quixotic quests to find new ways to bring gaming material to my table. Both the Open Design project and KQ sounded like real long shots when they were first announced, but so far they are both paying off, big time.
In the Kobold-in-Chief, We Trust.