Bayren

On a scale of 1-10 how capable is Rufus of flying past the court and grabbing the tennis ball as it's tossed?

If that's required then yes a pigeon shaped tennis ball.

All of the above

I am by no means the target audience and this is just my opinion but I think there are two main reasons for it failing.

1. CG animation. Majority of people just don't like it compared to traditional styled animation. It works great as a supplementary tool for things like mechas and weapons but not as the whole project. Two manga that I really enjoy are Knights of Sidonia and Ajin, both of which have anime adaptations I couldn't watch because the CG is just so off putting for me, despite them being some of the better CG I have seen. If I can't get through them there's simply no chance for this.

2. The premise. This is probably my biggest issue with anime in general and Chika is the same. It's just another stereotypical, uninspired, generic, pandering anime. There's probably 10 other idol anime with the exact same stuff going on. The 3 top anime this season (going by reddit and MAL anyway) in my opinion don't fall into any of those categories. Boku Machi is an intensely gripping original mystery. The other two being Kono Suba and Grimgar which each have their own twist on the going into a game world genre. Chika doesn't do anything different from what I've seen.

Overall it's the complete opposite of the incredibly successful Under the Dog campaign which for me ticked all the right boxes for something I would want to watch and convinced me it was worth backing. The same cannot be said at all for Chika.