I also have been a little perturbed by the instant healing phenomenon. Reminds me alot of DBZ, but Ichigo pulls it off more like Guts from Berserk (which I like) Healing powers have remained very vague so far, hope they'll explain what the hell is going on with them later on (or leave them as a convienent Deus Ex Machina...)

Oh, and Capt. Kutoscohi (sp?) -the evil mad scientist robotic chameleon one- really interests me. A real bad guy through and through, i love that!

He's going to trap Ishida and Inoue pretty badly, I can see that coming...

Oh, and I also laughed out loud at the characterization of Zabimaru, a dumber Naraku with a snake tail...
But seriously, the two opposing personalities in Zabimaru made me think alot about Zanpaktou's Released Forms, especially with Yorouichi telling Ichigo that there are two different released forms. Makes me wonder if the second half of Ichigo's Zangatsu isn't that Hollowish pale clone of himself... or maybe an actual Hollow? Would explain the random appearances of those Hollow masks saving his life. So do all Zanpaktous have two personalities like Zabimaru?