GC is truly a great product and worth every penny you pay. The owner is extremely responsive to bug reports and generally has a fix in a few days.
Unfortunately there are some bugs that cannot be repeated and features that you get to depend on never get fixed. Example: Find Duplicates works 98 percent of the time and when it doesn't the whole machine tends to crash. So no report is generated and nothing for the owner to look at. There should be but there isn't. I am not sure if its an Apple issue or a GC issue but in any case nothing ever gets resolved.
I have been told a lot of the bug reports that are filed are in "someone" else code (from Apple to ADOBE and others) and it is like nothing ever gets resolved if the problem is other peoples code. So if you do not like your system to crash only keep to displaying of images and it works really well.
Despite all my issues the product is really good and is extremely flexible (almost too flexible in some cases) as the preferences are many and most are poorly documented (IMO) so you must go through all of them any time you want to change something (simple?). The documentation was probably written in German and has been translated to English so-so. The person that writes the documentation at times ask someone on the mailing list on how to phrase something.
With the support and the price you cannot go wrong.
GraphicConverter Classic
View, edit, convert most image formats.
Version: 6.5