Took me four years to buy this bell.
After reading the reviews, and a single test ding another bicyclist allowed me, I finally decided to buy one. I really like it.
The decay of the ring is very long. Ring the bell twenty feet behind folks walking on the path that your are going to pass, there is still some ring left as you pass them.
The mounting system just works. The skinny little band that holds the bell allows very tight integration with other handlebar gear.
My buddies Dad who I often ride with laughed at me for spending $60 on a bike bell. I bet he will buy one someday! :-)