Very average. Just a device really for the good guys to shoot at some bad ones. The portrayal of the bad guys as bad isn't done that subtly either.
Looks ok. The characters are designed quite well. It could do with being smoother at the action sequences.
There is a solid vocal performance playing the characters well, it is not the actors fault the characters are bad. The music is actually O.K., a little reminiscant of Samurai Champloo, which does lead the mind to make some harsh comparisons.
Poor development and design. The development that does go on is very clunky and forced. Characters arrive in the places that you expect them to in a series of not very well connected bursts. There is not a smooth transition.
Watch nearly everything else first. I can not think of anyone, fan of any genre, to whom I would recommend seeing this next. Perhaps if violence is your thing and are running out of other, better anime