Okay, so it seems like I am the first one to write a review about this anime series.
First let's talk about the story. Now I am not reading the manga of this anime and I know that this is the second version of the anime adaptation of this story. I have watched the first version of this and I can say that there are some changes in the story. Now I won't talk abt this further because it will turn into a spoiler. The only thing that I can say for the story is it is still good in a way that makes me
want to still watch it.
Now for the art. Now I can see that the animation quality has improved since the original cardfight vanguard series. I also liked how they used bold lines in some part of the characters. The new thing with the player switches out and goes in again when riding a new unit is also a good idea.
For the sound, I liked it when they make vanguard speaks "Yes, my vanguard" and other similar phrases. But I think it's too frequent and it has become a bit boring. A suggestion is they should only make the vanguards speak on important scenes to build up excitement with the watchers.
Now I have nothing to say a bit much about the characters because they are just the same with the original series. Hoping to see those overpowered characters later on in this story like the one in the original one.
All in all, I can say that I have enjoyed not only the story but also the community around it. I think I might have to read the manga to further my reviews about this anime.
I hope this review was helpful to you guys.