I ordered back on 24-Aug-12. Communication was great - sent Leith a couple PMs after I ordered and he was quick to respond, courteous, and helpful. Got my report back 12-Sept-12. Report was easy to read and follow. Spot checked a number of links and everything looked good.
Site I used this on is roughly 8 years old. Had many top 3 rankings, but has lost a lot of its long-tails and dipped a few spots (some 1-2, others 3-5) for some of the KWs it gets its bigger traffic. I've thrown everything at this site over the years from sending article directories links at it every day to profiles to highly relevant links from related authority news sites I used to write for and have been published on to ALN and a little of everything in between.
Penguin had serious effect on the site, and that's why I've dropped some in google, methinks. Traffic in June was actually roughly 50% of what it was in January, and opt-ins and sales reflect that.
Thus far, some of the main KWs I care about are dancing a little. Up a spot for a couple, down a spot or two for others. But I expect this is just dancing, so we'll see how it plays out. Though I should be up-front and say that isn't the only SEO I've done in the past couple months or will do on the site.
If/when there's a major difference, I'll come back and report then.
Thanks.