Unlike Grand Blue, High Score Girl's first episode was PERFECT. I'd say I imagined Haruo's voice to be less adult-like and I wasn't expecting CGI, but they handled it really well. The pacing felt just right, and you can't tell anywhere near as well that this is a manga adaptation. I've been disappointed with manga adaptations since Hinamatsuri last season so I'm happy to get something I feel actually captures the original work's charm, at least for now.
And the somewhat-subpar animation makes their nude bodies not as detailed or muscular or amazing which is kinda a shame, it lowers the macho feeling of this just a tad. And what the fuck is that Azusa in the OP why does she look so shit?