WI-PPP: Clinton +12, at 50%

[‼realJohnEwards‼]

Are they a reputed Pollster

Called every swing state correctly in 2012, with some dead on.

Yes, but they've been criticized for potentially cooking the books in order to match the polling average:

http://fivethirtyeight.com/features/heres-proof-some-pollsters-are-putting-a-thumb-on-the-scale/
https://uselectionatlas.org/FORUM/index.php?topic=197049.0
https://uselectionatlas.org/FORUM/index.php?topic=179353.0

They should not be able to get that close to the polling averages by chance, given their sample sizes.  Same applies to other robo-pollsters, for that matter.

PPP has been accused of fabricating data and polls by some people. I'll take their words for what they are but PPP polls have never been too persuasive to me.

No... they failed to release a correct poll because they assumed it was way off.  They didn't fabricate anything. 

Yeah... plus it was a private poll. It seems right to assume that your methodology is off in a case like this.