I binge watched Season 2 this weekend. In between watching the two seasons I finished reading the series. I think that helped a lot, since it is hard to keep track of the main characters and locations, never mind the new additions. Having said that, I think that Season 2 of WoT is very good, both from this reader's standpoint and a viewer's.
The main book changes allow the TV version to streamline the pacing and bring the mechanisms of the plot into better focus. In the eight hours I watched, I had a cleared idea of who each character was and their potential than I ever had in the first 3-4 books that this season is based on.
I also liked the shift to fleshing out the Forsaken as individuals with motives of their own.
As TV viewing, There wasn't much I didn't like. (Though I'll be honest and say that I can't tell poor CGI from good. so if you are rating on that or special effects, go for it.) Every episode had some highs and lows, as each main character has their moment. This season sees them come into their own, being separated at the end of the last. The Seanchan were introduced, and their damane were just as scary as I'd imagined.
I read that season 3 is a go. If it is as good as this last one, I hope it keeps attracting viewers. Because my fear is that the interest and money will run out of steam before they get to the end of the series.