I'd like to like DPP, I really would. But it's got too many showstoppers for me to even consider it.
Some are so trivial that I can't believe they weren't fixed years ago, like how the histogram always reflects the full image before cropping, even after you've cropped it. Totally useless!
Others I can almost forgive Canon for not implementing, but that doesn't do me any good. A way to build a camera recipe from a ColorChecker comparable to the way that ACR and the ColorChecker Passport do would be the perfect example, there.
So, sorry. The cameras are awesome, but the bundled software just doesn't cut the mustard. Sorry.