Not sure whether by CC you mean Lightroom CC, however I have a 1st gen 12.9” iPad and 27”imac anc i do 90% of my editing on the iPad, normally when i am on my travels and it works really well. My workflow is as follows,
1) Create collection in LR CC (on iPad) and eat to auto-import
2) Import photos into Apple Photos (Temp Album), these will automatically import into LR. Once these are in LR, delete from Photos
3) Edit Photos in LR and rate
4) Transfer finished edits into my final collection in CC and Export back to final Photos Album.
Whilst this is going on, in the background the photos are uploading into the Adobe Cloud and back to my imac at home which is set to store the photos by date. The LR Collections are also on the Mac. The finished photos are on all my apple devices for sharing (iphone, iPad, mac)
Very simple and takes up very little storage as once everything is upload to the cloud, you can clear the cache on the iPad.