Originally Posted by MetaMan

Everyone i know with properly developed sites, who took the time with content and structured link building over the years had their rankings boosted up.

this may not go for everyone. but most of the people i see complaining about it have low quality sites.

no one knows the algorithm fully in and out. but if google did the update to pull better results the fact is that the majority of newer serps will have better results. that is the entire point of the update.