Well, I just started watching it. Feels quite different from the old anime of 765Pro... but now I think it's totally reasonable why CG attracted more fans than the original 765Pro All Stars, I'm pretty sure they'll gain even more fans with the anime. Although episode-1 is quite awkward, I actually enjoy the first 3 episodes a lot, and it seems A-1 Pictures took the lessons they've learned during the production of previous iM@S anime, the company structure is also much more realistic.
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All in all I'm pretty satisfied with the setting it took, Uzuki is really adorable (being scared by producer is the best part so far XD), Rin and Mio are also amazing

Also I have a faith in producer himself, although he doesn't speak much or encourage the girls as passionate as 765's producer does, I'm pretty sure he'll do a hella good job!!