None. I had more issues out of Privacy Badger when it was new. Everything seems to be playing nice ?
It does appear that from time to time they trade off on when one is running or not. Not a biggy when you run this much stuff.
Actually no, depending on site complexity, I do a lot of trial-and-error with new sites. It's really annoying, but the price I pay for some shred of privacy.
I don't see it that way. Yes, the site complexity does cause me some issues but for the most part i do not have a lot of issues.