My site gained back nearly all its rank after that russian link network was banned. So I guess that was the network that attacked me with 400k neg seo spam links. So that was nice getting ranked again! Then the hummingbird update took my site down 5-7 pages (still better than before) and thats where I sit now.
Its odd because penguin penalizes sites that buy links or do things against the TOS. I was surprised I took any hit at all, I expected to go higher than ever I guess because I assumed white hat sites would skyrocket after an update geared towards punishing the black hats.
Remember though guys Google said all their updates take about 10 days to roll out now, so there is still going to be some shifting over the next few days (if the 10 day rollout is still the process for updates). So dont worry yet. Overall I am very happy with the results. There are some sites that rank above me that are trash, and should not rank - fake reviews telling people to buy crap thats useless for the high commission etc... but google cant really tell who is honest and who is a scumbag, so overall def happy they took care of that link network!
Also I think that people whos sites recovered, who were attacked by NEG seo should take specific notice of how effective neg seo can be. I think the link disavow tool was used to identify these networks.