I bit the bullet and subscribed to the LR/PS CC 2015 programs. Initial thoughts are positive, I like the adjustment capabilities in LR, and I like the printer interface far better than Aperture, worth the $9/month price alone. As far as "migrating" my files, I have started exporting the RAW images to specific folders, then a separate export for modified files as 16 bit TIFFs to the same folder. Kind of time consuming, but i am only doing this for images I really like or need. Aperture is dead, and I am glad to be rid of it after working in LR. BTW one thing you have to do before working in LR is to check the "Automatically write changes into XMP" under Catalog Settings, which saves your changes to your RAW files in a sidecar file when that RAW file is exported.