Actually, my low opinion of Vortex is the result of a product failure.
Crossfire II scope that would not track accurately. Not a premium product, I know, but was on a rifle that I wanted, Ruger American 6.5CM. Called up Vortex and was told by the 1st fellow that they were aware of the problem with the Crossfire II and were "working on it". That was the end of the warranty conversation. I offered to send it in for them to review and was told that it wasn't necessary as they were "working on the problem", and were well aware of the problem, but no replacement or movement at all was offered by them on that scope.
The conversation between him and me grew a little heated and finally I asked to talk to a supervisor. Finally talked to some lady there reached some compromise. If I hadn't pushed it and took some "impolite" conversation from the first guy it would have been the end of the road. My Leopold scopes of which I have 5, have never had to be sent into the factory for any warranty repair. They have sustained my abuse and are still working just fine.
Lesson: if you first get a refusal on their warranty and it IS a low-end scope or maybe any of their line, you will need to take some heat and then ask to talk to someone else.