This is a powerhouse for automating file handling. An absolute fantastic app. The design of the app is excellent: it is simple yet useful for newcomers. In the beginning, you can just let it do a few simpler things such as: (1) auto-emptying the trash, (2) helping you clean up system files after uninstalling an app, and (3) put all your mp3 files into a specific folder. Then as time goes, you can start (4) experimenting with letting it auto-file your downloaded bank statements into a specific folder. Later, you can try to (5) let Hazel put a date in the file name so your bank statements are auto-sorted and auto-named.
I have been using Hazel for many years, and it now does a lot a the heavy tedious work for me in the background. This include extracting dates from inside PDF files. Auto-uploading files in the background to web servers. Run applescripts at specific times of the date on specific folders. Prepare files for uploading to servers by compiling them, renaming them, and associate meta-date, and then upload the files. Handling all of my financial statements and receipts from banks, utilities, and so forth. Send messages to my loved one by the end of work day. Sort my photos into sub-folders based on metadata.
That was a small selection of what one can do with Hazel. Totally awesome app. If you file management is a mess, or you are tired of doing repetitive work, get it and start enjoying Hazel doing all the boring work for you.