Never had any issues , either durability or warranty . Snap On UK may not be bound by North American policies . Proto , and Mac are also good professional grade tools , Mack has vastly improved in recent years .
What I suspect , is that people who can't afford them talk smack about them .
I use them for wrenches , ratchets , sockets and ratcheting drivers . For general cutters and pliers , I generally buy Kline , more cost effective .
Chris