Spider Pen is cheaply made
I love the idea behind it, and when it worked it was awesome to use... but the pen itself is cheaply made and the screw threads on the compartment that holds the battery into the cap (reel mechanism) stripped while it was not even in use, so the reel is now completely unusable. I got a few months out of it, that's all.
The spider pen is way to easy to activate, so if you're walking around with it in your pocket and the reel gets turned on accidentally, you'll pull your pen out for performance and find that all you got is dead thread.
Like I said, it's an awesome idea, but the design has a few flaws that really make it disappointing.
-Nate