Positive rating for very cool and powerful image processing. Points off in other important areas: a couple of crashes, memory leaks, app strips important photo EXIF data (date/time, camera, shutter, aperture, ISO, GPS, etc.), image rendered 3x for simple open and save, default iPhoto image save location is replacing original image deep inside (off-limits) iPhoto bundle. (:-( Mac UI seems unpolished; feels like pre-beta from new-to-Mac developer (using some non-Apple developer tools?), e.g. can't tell if current image has been saved, no in-app help, missing View and Window menus, prefs is (funky, resizable) modal sheet (rather than modeless window). App desperately needs a batch mode for easy unattended multi-image processing (otherwise time- and labor-intensive). Alas, company unresponsive to (pro software tester) feedback. If it was my app, I'd work very hard to make 1.0.3 (not 1.03) the fine app 1.0 could (should?) have been.