I really like this, it has more detail than the Sonic Screwdriver, it looks metallic and I don't know if they done this on purpose (probably not) but when you pick it up it clunks like its made of metal, which I think its pretty cool.
My only con to this is the "aging" sound effect, its too quiet and its not a continuous sound. Unlike the sonic screwdriver's sound that just keeps going until you let go of the button, the "aging" sound loops over and over again, and sound a bit lame imo.
But overall its really good, I'm putting it on my wall next to my Sonci screwdriver.