Hiro and his story is a little boring to me, what with Kensai being gaijin and all. I knew something like this would happen, but it's a little cheesy. Ando looks weirder and him being friends with Heroes dad suspended my disbelief for a second there. (Irony.)
Have you been keeping up with the webcomics? In one of them Ando was trying to get with Hiro's sister and he ended up inadvertantly beating off a bunch of motorcycle punks and sort of earned the respect of George Takei.
I am sort of hoping that we don't have TOO MANY new characters and shit. ie. I'm hoping that the kid Claire met is Sylar or someone (did he kill Betty I forget but he may have gotten some sort of power) and not just some random new kid. I mean yeah really likely it's NOT SYLAR or anybody important but I really dislike LOL RANDOM KID NEW CAST MEMBER WITH NO PURPOSE.
Mr. Bennete is totally kicking ass. That scene where he kicked his bosses ass. It seemed a bit out of character at first but when you think of all the SHIT this dude has been through it's understandable and totally fucking awesome. He's actually probably my favorite character now despite not having any powers or anything.
Nathan's vision in the mirror was interesting too. He might have been seeing the way he was HORRIBLY SCARRED in the Peter explosion but somehow Peter used his healing power's to help Nathan?
Maya and Alejandro have potential but hopefully they don't become another Nikki/DL/Micah storyline. Like I said I hope they stop with all the NEW CHARACTERS and just spend more time with the ones people actually care about (The Benettes, Matt Parkman, Hiro, etc).
I also am not a fan of the Takezo Kensei storyline arc but then again I never really liked the samurai/feudal japan bullshit.
EDIT: According to Wikipedia Maya and Alejandro:
a Honduran who is on the run from the police. Under stress, she can create a virus which is immediately fatal to those around her. Her brother, Alejandro, is the antidote to the virus. Might this have to do with the virus Mohinder is researching and perhaps the key to the antidote?
EDIT AGAIN: I just read the most recent comic- about this West kid. As annoying as I found him in the show I actually liked that comic about him. hopefully they can recapture that in later episodes because from what I've seen of him so far in the first episode here made me hate him.