I liked the quality of this little USB microscope. I also like the fact that is was instantly recognised by my Ubuntu Linux laptop computer and could immediately take snapshots. Even the snapshot button on the microscope worked on my Linux machine. (This microscope seems to be built around one of the widely available webcam chipsets...)
The only downside I could find was that the colors seem washed out. This could very likely be a matter of some settings in my computer, so it is probably not a fair complaint. Being an electronics professional, this does not detract from its usefulness for inspecting surface-mount components, solder joints, etc.
All in all, an excellent gadget for kids, coin collectors, insect collectors, electronic hobbyists, etc. Two thumbs up!