I have seen many people afraid of this quality score. Personally it's an excellent feature if done right you can use it to your own benefit. Some high quality score keywords can perform better even with lower bids. So make sure you maintain a healthy quality score for all the keywords you are advertising in a ad group.
Remember if you are an affiliate site you are not welcomed both in PPC and SEO. Bad quality scores are common in affiliate PPC campaigns.
Labels: pay per click