Summary: I have had this scanner for some time. Got it for its versatility especially with scanning from large books. I just confirmed with HP that it is not compatible with either Windows 8 or Mac Lion. and there are no updates planned at this point. Therefore, it unfortunately has gone Jurassic.
Summary: It is a great design,, very easy to use and takes up little desk space. BUT, scanning any photos with large black spaces (ie black backdrop) left a streaked look and the black was more of a grey. HP promptly sent me a replacement scanner. This one the steaks are gone, but the black areas are still grayish and blotchy. If you are using it for documents... It is awesome. It makes scanning my receipts for my expense reports a piece of cake.
Summary: I purchased this scanner for the flexability that the form factor offered, but I was frustrated by several aspects of the design, documentation and software. 1. The scanner has a long USB cable that pulls laterally from the USB prt on your PC. If you leave it connected for any length of time or accidenty pull on the cable the port is sure to be damaged. 2. the software is junk. It's hard to figure out, crashes and gives less than perfect results.