Having watched the first episode with subs now, I - liiiiike it? Yes. I was apprehensive about Wizard because I'm a big Fourze fan (and Fourze was deeply, deeply flawed in about eight or nine different ways, but it's one of my favourite series anyway), and time will tell how Wizard measures up to it for me, but I liked this first episode.
The fight scenes are very good, the plot seems interesting, the suit designs are all good, I think Haruto is great (I don't really see how he's much like Tsukasa, tbh - Tsukasa was overwhelmingly arrogant, essentially a more likeable version of Tendou, whereas Haruto just seems more playful and cocky than anything), I really like Rinko, and I think the two of them interact well. We've not seen enough of the others for me to form an opinion on.
My one bugbear is the belt voice. Not that it's hammy, but there's just so much of it. It feels like it never stops talking, it makes the OOO and Fourze belts look practically taciturn. Which is problematic, because it really breaks up the flow of the fight if we're stopping to listen to a sword inform us of its desire to shake hands.
As far as the contention that a character who is good must also be nice - somebody clearly hasn't read any Pratchett. Nice is not the same as good, or vice versa, and you can be a good person without being a nice person.
Moreover, by god, it would get dull if all of our Kamen Rider heroes were incredibly nice people - that idea seems to me to be nearly identical to the irritating fanboy idea that all Kamen Rider shows must be grimdark an Miller-esque, just on the other extreme of the scale, and it's stupid, frankly, and wrong-headed. I wouldn't want all our heroes to be jerky, and frankly if another Tendou never showed up again it would be too soon, but the Harutos and Takumis have their place.
Also, it presumes that the first duty of children's television is to teach them how to act, not to form a compelling narrative, which is frankly just insulting to children; and it presumes that children are too dim to see someone who's acting in a manner they shouldn't emulate, and realise that they shouldn't emulate them, which is even more insulting to them. They're children, not idiots.