I received my review copy... the content was generally ok, but there were a few phrases that were a bit awkward. I gave spotwriters my keyword and didnt really explain what he should talk about, just told him to write an article about those keywords... He did use the keyword and did a very good job of inserting it many times in a way that is not too spammy. However, I think there was a little misunderstanding concerning the topic/subject, the article was a bit off subject even though he used the right keywords. This could have been avoided if I had given him specif direction for the article, not just the keyword to use, although in my mind it was pretty obvious.
For SEO articles I think he is pretty good, but for quality articles im not convinced. (Of course in that price range you cant expect amazing quality either.)