These are our five fastest arguments to help convince you that SuperMemo is a real McCoy:
Awards - If you review the awards granted to SuperMemo, you will be sure that its quality has been appreciated as a software product, too
Field test - You are now probably ready to commit a couple of minutes to download a working version of SuperMemo for a trial test. You can also start from reading the functional description of the program: SuperMemo Help On-Line
Users - You can get in touch with users of SuperMemo to collect opinions. Check the net for numerous discussion forums
If you would rather listen to the devil's advocate, read: SuperMemo is Useless!!! or No force in the world can convince me to SuperMemo!!!. In addition, there are troubling questions asked from an entirely new angle: Can SuperMemo lead to Alzheimer's?