So far I've been very satisfied with this series. It's much better than Zexal. As the first review had said, all the series' have had their own topics/gimmicks/themes. If anything, people need to get their heads out of Gen one and realize there are others out there. If anything, GX is my all time favorite. However, with Arc V, it focus' on the future of entertainment, focus' on the study, the different types of monsters, summoning's, and more. This series allows the players to ride the holograms they create (this was done way before this concept back in Jimmy Neutron with the holographic butler).
One of the biggest reasons I suggest this series over Zexal and most other's, is because this isn't trying to capture your attention. It's not trying to be good like all other shows with their try-hard gimmicks. This anime is by far more fun to watch. I feel like a kid again watching Yugioh like it was when it first came out.
However, as always, the VA in English is bad. So don't waste your time on it. I say this as I watch GX in English. I try all anime that has both Japanese and English VA to see which is better. Sometimes, both, sometimes only 1. If I say only 1, it's normally Japanese. I'm not an anime weeabo snob. I actually want good voice acting so I don't have to read subs all the time.
But, if you're unsure, just watch the first 10 eps, if you enjoy it, good for you, if not, bummer.