People have asked how this has performed after a recent update. I have to be careful as you have certain restrictions on this forum but out of 10 beta tested customers only one was effected and they (despite my advice) chose just one anchor.
The results it gets stick. I think this is because we don't get lots of link deletions like spammy services, original content and the variety of link sources (audio links, video,pr, web 2.0 etc).