As a collector of pins, I must say this is the best pin I've required yet. The level of detail, material, the gears that spin so easily and are yet firmly stuck to the pin itself. Love it.
I really loved the design of the pin, it fits the grey colour scheme of my Doctor Who messenger bag really well. The tiny detail of the spinning gears is really thought out, but they don't really spin that well vertically.
But I have had some issues of the pin not staying in one place, the rubber stud at the back worked fine but started to fall out after 1-2 months of pinning.
Love it. It's a thoughtful design that is well executed and looks great. If there is any gripe to be had, it's that the gears don't rotate well when the pin is vertical. Don't care, it's awesome and the fact that the gears rotate at all is exceptional. This is a tremendous pin for only $12.00, that is unique enough to be in anyone's pin collection. If you're a fan of the series, don't even think further, just get it.
The pin came pretty quick with the UNDERTALE - Delta Rune Lapel Pin I had ordered in the same shipment over Christmas. Loved the game and thought of getting the pin as well.
I really love texture and the quality feel of the pin, got a little bit too fiddly when I realised that the gears were able to rotate on their own. The two rubber grip on the back of the pin has a nice solid grip, the gears themselves rotates finely.
The only issue I would have is that when you shake the pin, the gears themselves jiggle a little in their sockets. (Hope the gears aren't too loose, it would take a Shiner to pull them off.)