F/SN: UBW and most anything from that franchise is on a completely different level. Garden of Sinners is an all time favorite.
I'm not against CGI as a medium one bit, though I don't think it could ever replace the human hand for sheer beauty. What I'm against are these clearly low quality, blocky, and unnatural looking animations that are jarring to watch. It just feels to me like it's budget before substance. If people aren't bothered by it, then it's a financially sound decision. But to me, it loses what it means to be an "Anime", and is just an animation.
The video the @Gordon_Freeman linked shows that it's indeed possible to keep the Anime aesthetic while gaining the benefits of 3D, so I can only hope the medium matures sooner than later.