I started using DF over 10 years ago. I've upgraded every time there was an upgrade - including v4.0. I find this to be a GREAT timesaver and the time it's saved me is well worth the price I've paid for this over the years. Now with DF incorporating QuickLook into an open dialog box I can see this being an even more useful utility (and I'll bet Apple will incorporate this is 10.6 - sorry Jon).

Whether DF uses some APE or not doesn't matter to me - DF saves time. Has DF crashed? Yes! Over 10 years it's crashed perhaps a dozen times. I can live with that. The few times I've had problems - a quick email to Jon and he's on top of it - usually having a fix available within a week. For my money, you can't ask for better service.