I purchased this scanner for its "easy set up and satisfactory scanning," which was touted by an online retailer. Reviews seemed favorable at that site, and the price was right. Unfortunately, the software that accompanied the scanner is apparently not compatible with Win 7 Home Edition,on a 64 bit laptop computer. The hard drive on this machine is empty, and this software was the second installed, after the security software. I get a continuous "Navigator has stopped working" error message, when I try to use the scanner with its factory software. Many attempts to restore or remove the software, updates via the Canon wevsite, and consultation with Canon service reps have not solved this problem. So I'm going with a laborius work-around, which is unsatisfactory for scanning multiple photos or documents in one "session". Not satisfactory, since this is not fast,and my time is money. Overall, the scanner is compact, is lightweight, and has features I wish I could use. So I give this scanner a "2" for its overall lack of usability.