The product works adequately to back-up the phone directory in my Verizon Motorola RAZR V3c to my Windows XP PC. I can edit the directory file in my PC (which means I can use my PC keyboard rather than the awkward process of inputting entries with the RAZR keypad) and transfer the updated directory to the RAZR. It may be just a matter of personal taste, but the directory file program on my PC did not have a particularly attractive appearance to someone like me, accustomed to mainstream Windows programs. Perhaps I'm not a very sophisticated user, but my personal feeling was that the product's software installation process was not as "slick" and easy as I had experienced with other Windows programs. When I plugged my RAZR into the device, the RAZR gave me a warning message (something moreless resembling "unauthorized charging device"). Again, the entire process is not as intuitive--at least to me--as most Windows programs I have used. So follow the directions very carefully, step by step; don't try to guess what to do next. The big advantage of this product is that it does do the basic job (backing up a Verizon Motorola RAZR V3C). I haven't done a lot of searching, but (as far as I know) there isn't much in the way of alternatives for doing this task.