After complaining about the first units I received, see below for my first review, ATAFA sent two replacement units right away. I am now satisfied that this product can work well. Someone who will be using the counter frequently should probably find a more robust counter, but this one suits my purposes quite well. I certainly recommend working with ATAFA, they are very responsive and helpful.(I bought two of these units and both had the same problem. The day they arrived I found that not all presses of the trigger resulted in a "count." This would always happen immediately following the tens place changing over and occasionally at other times as well. For instance, it would take at least two presses to go from 10 to 11. I could look at the device at all times to make sure a press was registered, but that defeats the entire purpose.)I should also mention that one of the units i thought was broken does seem to work well as long as I press firmly. Frustration with the first broken unit probably soured me on its working partner.
Rating: [4 of 5 Stars!]