I haven't had it very long, but I already love this thing. It's sturdy, doesn't need batteries, and the knob to reset it works great. The button becomes a little stiff to click as the number gets higher, especially after 100, but not so stiff that anyone other than perhaps a very small child would have trouble with it. The "click" sound is audible enough and you can feel it click, it should work perfectly even in a loud area (such as counting customers to a venue).
Rating: [5 of 5 Stars!]