I have been using camera-specific ones I made with my Colorchecker, but the Adobe ones are quite nice, and might save me a bit of time. Like the landscape and portrait ones. It's great to have the rollover previews, like with presets. Seem to be some new lens profiles as well.
On CC you also get the profiles and perpective tool updates, and can now store originals on NAS.
The new profiles also work in ACR if you're a Ps user.