Not a big fan. I made it through 5 and a half books before deciding I really didn't care enough to continue. Giving up all those hours as lost was, as it turns out, entirely painless and caused me no remorse.
There were certainly some good spots to the books, but they were all grossly overlong and self-indulgent (more so as the series progressed), and 90% of the characters were paper-thin (not that this is unusual for fantasy). In particular, I found all the women (Moiraine, Nynaeve, Elayne, Egwene, even Siuan and what's-her-name... Faile) interchangeable, and irritating. It's like he said: Ooh, yes, this one will be feisty and strong-willed, and will pull on her braids! And, let's see, this one will be feisty and strong-willed, and... will have red hair!!!
Also, the Men are From Saidin, Women are From Saidar shtick got tired about 30 pages into book 1, and never stopped being tired. And, Ogiers? Stop wasting our time.
A few things I did like: the historical flashback scene when Rand goes to Rhuidean (I'd rather read a series set in that flashback world, I think), the Seanchan, the squabbles among the Forsaken.