I looked at the other two reviews and it seems they judge it too harshly. Me? I've watched 27 episodes of this anime and I love it a lot. Ahem.
Allow me to review everything.
Story (7)
It's not super amazing and it doesn't really have a plot aside from the mystery of the power of the cards. I dunno it myself, but that really caught my interest. I love how the Vanguard game is played. The rules are interesting and I hope it gets brought out here to the USA so I can play it myself. Also, I like this anime a lot better than Yugioh. Yeah. I went there. The score coulda been higher, but I don't like how Aichi continues looking for Kai and being sorta obsessed with him. However, I like how the series are progressing and hope to see if it gets better.
Art (10)
The art REALLY attracted me to this anime. I love the designs, especially the cards. There are a variety of appealing cards compared to YGO. The colors aren't dull and I love the animation. Need I say more?
Sound (10)
I love the OP and ED themes. They're on my iPod and they're addicting. I haven't heard a song I didn't like yet either. The music really matches the anime. I am pleased.
Character (8)
Gave them an 8 because of their designs and personalities. Coulda been a higher score, but Aichi is short like Yugi..Sorta like his personality as well.
Kai = Kaiba? Um. Except he's more of a jerk. I know the YGO creator coulda been more creative. I love Misaki. She has a sad back story. I hope they get into more characters stories and focus on them instead of focusing mainly on card games. I was rather surprised they did that. I love the comical moments between certain characters. I won't go into detail though. ;D
Enjoyment (10)
Once I started, I couldn't stop. I had to keep watching, but urgh for it being an on-going anime so I gotta wait for more to come out. I really enjoyed this. It helped me learn the card gameplay more and hoping that this won't be a long, long anime because they'll kill it like YGO...
Overall, it gets an 8.