Well it was quick and easy… but it seems to be using the same routines as the built in OSX conversion functions.
I have a hyge requirement for converting .ps and .eps files to .pdf and this seemed a Godsend, given the way Preview works now in Leopard it makes it slow and clumsy to convert & save to where you want your files.
A quick check showed that it is still not a match for Preview though. The converted files are from 2 to 2.5 times the size of the ones saved from Preview. The same result I got from using Automator scripts and AppleScript to batch convert.
I also agree that at this stage of its development, where it does not cover all bases, it is somewhat expensive for a utility.
btw I cannot see what's the problem with converting AAC and MP3's. Just batch convert them in iTunes. Ogg Vorbis, FLAC etc aren't supported but you can do those in Toast.
If the developer did however include them in Dragoman it could dramatically simplify the process, but I saw no provision to control bitrate or quality.