Granted it looks a little dorky, but now that I have a mirror I don't feel complete if I am on my bike without one.
I prefer the head mounted mirror to the handle bar mounted variety, less vibration, easier to control field of view.
I've had multiple bells in the past and they eventually break or stop working. I was looking for something that was a better build than the $12-$15 bells on the market that do not seem to last or are not reliable when I found the Spurcycle. Upon opening the package, the Spurcycle was much smaller than I expected, saving valuable space on my handlebars. The build quality was noticeable - it just feels like something that will last. The sound is exactly as described - loud and the carries. Was hesitant on spending this much on a bicycle bell but I can see this one lasting for years.
The bell itself is fairly loud, and it is easy to take on and off the handlebars. My only complaint is that the bell doesn't stay tightly in place. It keeps slipping so that it hangs upside down.