I've been using it for some time to process my Dimage 5 images and RAW files from A1, so i guess i've adapted to it. yes, it's quite limited, but I do the bulk of the editting on other software, it's just like a first step in my work flow.
Hoping that Dimage Master will be faster as they claim and includes a bit more editting functions like constrained aspect ratio selecting, rotating etc... not expecting high class tools like healing brush and layers, but just a little more tools and I can use it to process the bulk of my images and use more powerful programs only for images that needs rescuing and for heavy editting... It will make my work flow and life simpler by make processing faster, for one thing, I need not have another program chewing up system resources...
And i'm trying to resist buying Neat Image for the Mac... The Mac trial version doesn't has the functionality of the free Windows version... (The mac version limits the size of the image you can use with it) ;(