Originally Posted by PR_Glen

auto generated descriptions (which we offer with a lot of our promo content regardless) gets rejected in search engines because of duplicate content flags--even more so now. Written descriptions that are your own will not.

Sponsors pay you to sell their sites, not just generate traffic. If your not selling with good text, no matter what type of traffic, it will not convert as well as a well laid out description.

Talk to some review guys and ask them about their conversions.