Like most everything else in life the truth is somewhere in the middle when it comes to Chrony chronographs, I would suggest that the biggest issue with them is with not setting them up properly. I have compared the velocity readings on mine against an Oehler and a LabRadar and all three were close enough that I do not have concerns about it giving bad readings, mine is 30 years old and still works just fine.
Chrony's seem to draw the same sort of condemnation as Remington bolt handles and Leupold scopes - "haters are going to hate", that's just human nature. As some other poster mentioned they made a product that was affordable and allowed a lot of folks to own a chronograph who couldn't have afforded one otherwise.
drover
