[Omnikaiser]

Need to rewatch it with subs to understand everything but the show is totally Wizard. I have the exact same feeling watching this and Wizard in terms of atmosphere, dynamic and setting.

I have a "meh" feeling about the "sister/friend who disappeared when we were kids" plot (only because that's a common trope, I have nothing against it itself).

Caliber using a voice changer reminds me of Rogue as well like someone said. I guess he is someone we will meet quite quickly and we could intentify him by his voice if they didn't modify it, just like Gentoku.

Everything else is ok for me. the CGI is not so good but the sequence reminds me of GARO enough to find it okay.
The goofyness is here, but usually the 1st ep is always more goofy than the entire show itself (rewatched ex-aid recently and the 1st ep is wtf in that aspect. I didn't remember it was that much). But you have to catch kids attention so that's normal.