Up to page 183 so far. It's good.
A must read IMO. Better than books 7,8,10. So far about the quality of books 6,9,11.
The story progresses quite fast BTW.
About the battles: Yes. There should be some impressive battles. Not "skirmishes" with Hundreds of thousands of soldiers. The book seems to be like WW2 mentality. Hundreds of thousands soldiers here, hundreds of thousands soldiers there...
For a Medevial setting, these numbers are extreme. There's no way nations could rise, feed and equip hundreds of thousands totalling to armies of
millions of soldiers.
I thought the whole continent (Aiel Waste aside) had about 10-15 million people. It seems I was waaaaay off.
It's not that every farmer has joined the army, although in the prologue it makes clear that many did, forging spears or swords from their farmtools. It's that there were too many people around it seems. I would say that the continent holds at least 50 million people from what I've read. Quite like Europe of 1300s.
However: It seems that the theme of the book (Gathering storm should have been a hint...

) is "Extreme mobilization for the big finalle". So I'm getting used to mentions of "small armies" that are "barely" 50K people, when in book 4-5 10K soldiers were considered a force.
Advice:
Since it's been a looong time from book 11, before reading book 12, refamiliarize yourself with the plot and the characters. What I did was to read the synopsis of the previous books from wikipedia.
I also used wikipedia as I was reading the first 100 pages or so, checking the various characters to refresh my memory... but I hit spoilers on the book from there.

So I suggest you check them carefully.
EDIT: In a later chapter of the book some bit of the old Jordan resurface. Without giving spoilers, let me just say that there is mention to events of
the first book, following Jordan's tradition to follow up things from waaaaaaaay back.

Gives a sense of continuity. There are also other references to waaaaayyy past books, and attempts to continue such storylines or keep them in the reader's mind. But unlike Jordan some of them are given a few paragraphs that don't derail a lot from the plot.
In light of this, I wonder if Brandon received some chapters from Jordan notes and just wrote them without changing anything substancial. My understanding from the foreword is that he has read the notes and heard the story and then proceeded to write it. But a few chapters and passages seem too "Jordan" for coincidence.
Sure, he certainly wrote those chapters himself, but I think he may just expressed some parts with is own words instead of writting them, adding and changing things.
The book chapter names suggest major changes and progress. I can't stop reading.
Names aside, the story is captivating. Nothing new here. I always liked WoT books.