While my inclination is to stick with the classic CC rather than CC (aside, I don’t think this is a very good naming scheme) largely due to my Library size and workflow, there seems to be a lot of deal-breakers in this list:
https://www.lightroomqueen.com/lightroom-cc-vs-classic-featuresIn particular, things that stand out (for my use) include:
Greatly reduced export options including only sRGB JPEG with limited output sharpening
(or original)
No tone curve in Develop
Merge to panorama and HDR are missing?
No soft proofing and no Print
Limited zoom and comparison modes
Can’t use a second screen mode
Can’t paste settings across multiple photo’s (bulk)
No Smart Collections!
No virtual copies
No History?!
plus an assortment of other issues, big and small. I’m sure the CC version will evolve over time, but unless you need some of (1TB max or pay more - up to $100/month for 10TB) your files stored in the web, I don’t see much of an advantage vs “Classic”
On a lighter note, I’m curious to try the new Colour Range/Luminance Masks features, rather than going out to Photoshop.
Mike