Having seen posts about DXO I tried the trial and invested in DXO 8 (now been advised I can upgrade to 9) some months back. Having played around a little I am impressed with the results. Until I purchased my D800 I was more than happy with my iPhoto / Aperture combination and using Photoshop. With my investment in the new camera and 24 - 70 lens, I intend to improve all aspects of my photography and DXO appears to fit the bill.
My question is whether there is any merit in going back to my earlier photographs (the original unprocessed RAW files stored away on my 'oringinal file store' drives)and reprocessing them in DXO - I have tried a few and there are improvements, but before I spend many hours at this, I would welcome the experience of others