I've just updated my LR to the new CC 2015.1 version. The dehaze slider is indeed - as many others have said around the interweb - really very cool. I have replicated cleaning up, that previously took quite some faffing around with levels and plugins, with a slight nudge of the new slider. Colour me impressed! However I still think the Creative Cloud application is shockingly bad. I have 2 computers and after I signed out of one and tried to sign back in again, it said I was already signed in on 2 others. How does that work then? The Adobe people can't explain it either.