One average, most of the forum go'ers are delighted with the results. To be honest, I am shocked at some of the numbers people are reporting. Should SEO's really be controlling the top results of any search engine? If SEOs are happy, does that mean the search engine is doing a bad job of providing relevant results? It is hard to know. I get the impression that the answer to the latter question is, Yes, the search engines are doing a bad job. I am not complaining, I have some nice rankings to brag about myself.
Some others are reporting that their sites have been kicked out of the index. I have seen some cases of this where Yahoo! tagged a site as duplicate, even though the site, in reality, is far from duplicate. What I mean, is the content and html structure are both very different, not to warrant a duplicate filter. I have submitted a case or two that I have found and hope to hear back from the Yahoo! folks shortly. Until then, its off to the forums.