I have 10.2 installed on an iMac 27" 5k and 13" MacBook Pro. It runs great, but C1P still cannot handle large referenced libraries with over 15-20k images without slowing down significantly.
Since switching from LR CC to C1P, I had to split up my LR library into several smaller c1P libraries in order to have speedy performance.
Fuji RAW files processed in C1P are superior to the results that I was able to get with LR. I'm very happy with the switch, however, I do miss the excellent print module of LR.
Regards,
Bud James
www.budjames.photography