I just purchased the full version of ACDSee Pro 6.0 a couple days ago after reviewing its demo and I must say I'm impressed. One thing I hate the most in my photos is noise. It destroys detail and flattens an image. ACDSee Pro seems to handle noise in a new way, that even Lightroom 4 can't do. I've compared them. That alone was the 90% deciding factor. Then it handled working with light in a superior way that made it easy to work with. It seems to know how to not overexpose colors and lights when adjusting. I highly recommend the program. They have made a superior product in my opinion. I'm not affiliated with them at all, I just think we should share what we've discovered in products.
ACDSee Pro 6
Image below taken with my Sony A330 at ISO 3200 and no flash! I know, right? Too awesome!
Source: http://www.acdseeonline.com/photo/bi...0288/#12160288