As a major fan of the series, I was disappointed with the... unimaginative characters introduced in the manga. While he has an interesting story, Tyr feels too much like a generic male character to associate with the wonderfully weird cast the games are known for. Mizuha, on the other hand... is simply fanservice in my opinion. The antagonist wasn't to my liking, either. But, the new information about the Guilty Gear world makes it worth the read: there's quite a few things in there any interested fan would be happy to know about.

Overall:

+ The art's pretty good, as the characters actually do look like how they're presented in the games.
+ You learn lots of things the games don't tell you about the characters, the Gears, and the backstory in general.

- Mizuha's chest gets bigger and bigger as time passes: I was expecting it to gain a mind of its own and become the main villain.
- The characters from the games are given relatively minor roles: Sol (the main character of the entire series, no less), Ky, Axl and the rest take a back seat to two people I found rather boring.