In short, I am now seeing a 40%+ uplift in my Google organic traffic on a day-to-day basis relative to before the Panda 4.2 update. My Google Analytics shows this 40% lift clearly. It has been slow, it started out as a 10% uplift, then 20% and so on. I am now over 40% for a typical day.
But let me also share data from various tools.
SearchMetrics reports show I am almost at the same levels as before Panda 4.1 (before my penalty):
SEMRush shows the huge increase as well:
SimilarWeb also shows a nice increase in organic traffic:
For one, these tools do work in tracking competitive data, so that is good.
Also, I can confirm, this slow Panda rollout does seem real and I have data, at least on my single site, to prove it.
Forum discussion at WebmasterWorld.