Ranked at third for "Worst Tech Product of All Time" by PC World. It didn't double my memory. It didn't really do anything and I uninstalled it and just used the floppy disk for other things. The company was investigated by the FTC and recalled the product - I don't remember when I bought it, but it wasn't for the retail price of $79.95 mentioned in this Wikipedia article. I think I might have bought from a bin in Zeller's. Used on my black and white display Compaq Contura Aero 4/25, which I used for years even after I broke the display and used it as a desktop.