Does canon matter to you? Like, at all.
If so, spare your blood pressure.
If you don't care, it's very pretty, worth a few hours and orders of magnitude better than Wheel of Time.
It's important, but it's not THE most important. I'm not a guy who critiques TV/Movies by how closely it follows the written text, as long as we're hitting the high notes. I can enjoy the cinematic versions of a story on their own merits.
I was disappointed by Wheel of Time. I don't enjoy when they assume I'm dumb and can't figure out a term or backstory on my own, so they have to stop the flow of the episode to try and explain it to me in a way that's supposed to seem natural. Even with that, it somehow feels as if everyone is just going through the motions instead of telling me a story. The production values were of a lessor quality than anticipated as well, but perhaps I was just spoiled by The Expanse?