I'm wondering if anyone has any experience with Rosetta Stone, specifically any feedback on the online vs. CD-Rom editions. It is substantially less expensive to purchase the online version, but the subscriptions are available only in terms of 3, 6 or 12 months. Does anyone know how long it normally takes to get through one level? I'm interested in doing French, and would describe myself as non-fluent but well-versed in the basics of vocabulary and tenses. Also any general feedback about the program would be appreciated.