It's surprisingly good, I think, and challenging. The first level I played seemed to flow similarly to one of the Shin`en platformers, but the mechanics and level design are a lot more interesting. They ripped wall jumping right out of Mario, but hell, if you're gonna steal someone's ideas, steal from the best; it's implemented very well, too. The attacking is also very fun.
The visuals are technically attractive but lack imagination. Still, it's a good-looking game, for the most part. I'm probably going to play through it. The challenge of the platforming has gotten my attention; let's see if the rest of the game can keep it.