I think approaching a series like Wheel of Time in the hopes that it will accurately model the books is just asking to be disappointed. I think the key for maximal enjoyment--if you're a reader of the books--is focusing on whether or not it is in the spirit of the books, if it does a good job depicting the feel of the world, and reducing the elements of the story in a way that keeps as much of what is essential as it possibly can, given the more limited nature of a film series (If you didn't read the books, then you can just enjoy the series for what it is, without expectations).
The LotR films were loved by almost everyone, at least all but perhaps the most staunch Tolkienistas. Why? Because Peter Jackson did a good job honoring the spirit of Tolkien, and the feeling of Middle-earth--especially as expressed over many decades by its most well known artists, John Howe and Alan Lee. We can bemoan the lack of Tom Bombadil or various other things, but the total result was about as good as anyone could possibly expect, given the nature of film (We won't go into the Hobbit films). But even then, the LotR films are probably better seen not as "accurate translations of the book to film," but rather "cinematic homages to the books."
Game of Thrones had an advantage over both LotR and Wheel of Time in that the author was (is) not only alive, but actively part of production and with experience in screen-writing. I know Brandon Sanderson is around, but he's not Robert Jordan, nor does he have George RR Martin's brilliance with dialogue and characters, which is part of the reason GoT was so good.
