Please try AE in demo mode by downloading it from our site before you make your purchase. Also be sure to see our support pages for details on how to use AE. Most of the support requests we receive are answered in thos pages.
Aperture's Fast Library Switching Bug
There is a bug in Aperture related to switching libraries, which affects the APIs used by AE. If you use Aperture's fast library switching (i.e. The menu item File->Switch to Library) and then use AE with odd results you may be affected.
The bug is that data retrieved using Aperture APIs become stale and/or corrupted after the fast library switch. The only safe way to switch libraries is to shut down Aperture and restart it with the new library.
One manifestation of this bug is that AE creates the target folders, but no images are in any of the folders. If you think you may have been affected by this bug, shut down AE, then Aperture. Restart Aperture with your desired library. Then give AE another try.