I purchased the EyeClops for my six year old son's birthday.
When first powered up, the quality of the EyeClops -- how easy it is to use, and how good the image is -- are surprizing. To have such high magnification and such a clear color image in a *toy* is impressive. Maybe the sharp image is what motivates my three year old son to pay attention when big brother is using it. The internal light source means no fuss with aligning a mirror, sunlight, or some bogus "light kit" like with usual microscopes.
The other doodads in the box -- the focusing card, the containers, and the stand -- are neat goodies that make the EyeClops a cool system.
We look at the fine details of other toys, photographs, and printed matter, including dollar bills. We look at wood and cloth, too.
One note: our rechargable NiMH batteries do not provide enough voltage to make the Eyeclops provide a color image. With freshly-charged NiMH batteries, the Eyeclops provides a very good black and white image, but that is far less satisfying than color.
After having the EyeClops for a few months, my son has started asking me about atoms and electrons. So I think this "toy" has had a lasting educational effect on him.