There are two Chrony’s in the family. My wife gave me one a few years back and a brother has one. Brother was screwing around and hit one of the wire rods with a 45acp. His error.
A friend shot his with a 45-70 and reached a deal with Chrony that made him happy. This was the shooter’s problem, blind in one and could not see out of the other.
I do not have field experience with other brands, nor have had to deal with their customer service. At this point I am a satisfied customer.
But I appreciate Beerbelly sharing his experience with us. After reading his experience I will consider using my digital camera to document the condition of an item I was returning to a vendor. Mine is down in the garage and I will not be trotting down there to check, but does the unit have a serial number. People make mistakes and two or three setting on a workbench can become mixed up. Verification of a serial number lets the party on the other end know that you have documented your tracks.
Using my unit as a standard I am surprised a unit would rust. But there are other environmental locations that enhance rusting. Storage in a garage in which vehicle drag in snow that contains road salt could have a negative effect.
Years ago I was working on a rifle in the garage when I suddenly received an out of state work assignment. I stashed the rifle in locked cabinet, and hit the road for two months. Those two months set records for the amount of rainfall. I know that every night when my wife parked her car in the garage that pools of water would accumulate on the floor.
When I returned home the lightly oiled rifle had rust on it.