Cleaning though takes a matter of seconds. The only criticism I have is that there is no way to Select All which, if you're dealing with hundreds of files left behind, takes a long time to select them all.
I discovered a huge number of files using this that AppCleaner had obviously left behind. Orphans searches for files that are not associated with any applications anymore and have probably been left behind. My favorite feature in AppDelete was Orphans. There is an Undo feature in AppDelete too but it seems this only rolls back the last change that you made, not successive ones before that. Its a good idea to save this file as you can use it for future reference in case of system problems and it turns out you've accidentally deleted an important file. AppDelete also lets you keep a log of what you are removing. You can uncheck the ones you want to keep in the AppDelete window or remove them all.
These are normally receipts and library preference files. Immediately, AppDelete will reveal the associated files that need deleting with the applications.
