Out of all the YGO series I have watched, this series would have to be the most UNDERRATED out of the lot. I studied Media when I was in College and Uni, and this anime gets its points almost spot on. The plot twists were very well done, and it was the first time in ages I couldn't predict them. The cinematography was also handled really well. However, I scored it nine out of ten for a few reasons:
It does contain quite a few filler episodes, which does feel like the episode is a waste of time to watch. However, once the story gets back on track, it rescues it.
One specific character was unfairly portrayed, which didn't make me root for them as much as I hoped. It's also unfair as their real self is a lovely person.
And finally, some parts of the story near the end seem too quick. I understand there were problems whilst making this anime, but it is still worth the watch.
I personally highly recommend this anime, whether you are aware of the YGO history or not.