HDRtist Pro is easy to use HDR processing software for Macintosh computers. It has a simple yet streamlined workflow, with features such as 1-Click editing. A live interface, where changes happen as the options are adjusted. The core engine processes HDR images using 128-bit floating point data (16,843,009 times more precise than a JPEG). The unique file format also allows HDRs to be saved and re-edited at a later date. Even JPEG files generated by HDRtist Pro can be re-opened and edited. With HDRtist Pro, it's possible to create an HDR effect from a single RAW or JPEG image.
Easy to use
Nice range of results, from realistic to grunge
Minimum creation of halos
End results better than, or at least as good, as many far more expensive programs
Wide range of sliders for customization
Cons
Anti-ghosting processing could be faster. I have been assured that an improvement is in the works.
Summary
Should be on the computer of every photographer who uses HDR technique.