A very useful tool that people will hold onto (no pun intended). Folks find the uniqueness very appealing. The magnet is very strong and the light is very bright.
However, be careful with the imprint, as it can wear somewhat over time and the roughness of the handle (which is great for gripping) limits the print resolution - so use large characters in your artwork. Also some of the units required a little cleaning for the light to work properly.
In spite of the downsides, I really like this product.