I got it for Christmas and I'm a couple of hundred pages in. Have to say it's pretty good so far and, if I didn't have so much else to do, I probably wouldn't put it down until I was finished.
The last few books in the series felt like Jordan had lost his way a bit and got bogged down in the story. He was following through on sub-plots without advancing the main story much at all.
Sanderson is a fan, has lots of notes, finished scenes and dictations to work off and seems to be doing a good job of pulling things together and moving the story forward to a conclusion.
My only problem so far is that, despite having read most of the previous books twice, it's been so long that I can't remember various plot twists.
Memory of light was supposed to be one book originally but it was going to be so big that they decided to split it into three with The Gathering Storm being the first.
In the foreword, Sanderson says he's halfway through the second and third books so it wouldn't suprise me if they're out next year and the year after.