The links we acquired from that are all nofollow.
Two weeks since the campaign started our rankings for the site name, Passive Solutions, has started to improve. That after an idle period of 6-9 months being ranked at #9 we now all of a sudden rank at #2.
I don't think these links are responsible for that, what I suspect instead is that the paid campaigns resulted in a lot of brand searches, eg people googling our site name.
That should've significantly increased our click through rate on the first page of Google, and as such Google likely decided to move us near the top of the page.
It seems Google has improving user experience pretty well under control.