Played Strike Witches for a couple hours today. My first impressions: No, I don't think it's the best non-Cave shooter on 360 (that would be Raiden Fighters Jet, or maybe Raiden IV), but it is a pretty solid game imo. It's not particularly hard, but there are several bullet patterns and enemy formations that can be pretty tricky. Still, a 1CC should be pretty easy since your health refills after each stage. The scoring system is simple, but it's fun and it gets the job done. It still rewards risky play to a certain degree, since at certain points you'll be killing enemies that are on the other side of a wall of bullets, so you either let those shiny gold medals drop, or dodge through that shit to grab them. I also like how there's lots of different characters, each with their own abilities. Should be fun mixing and matching them for different team formations and such.
There's also a whole story mode with lots of text, full-screen art, and full voice acting, which is nice for fans of the series I guess. Personally, I would have preferred if they cut all of that out and sold the game for $40 or something. Or maybe $20 on XBLA.
Anyway, I like the game (for now).