I am sorry to hear about your poor experience, I have had 5 of these tools. And yes I have used their warranty service but always with success. I use these tools daily, I still have 4 of them and work them hard, I have always been happy with them or believe me I wouldn't have owned more than 1.
He is no fool who gives what he cannot keep to gain what he cannot lose
If you cannot stand behind our troops, (and I understand, no judgement here), then please stand in front of them, remember, they're willing to stand in front of you!