Certainly not my experience with them. In 40 years I've had to send two scopes back in to them both of which due to damage that was purely my own fault.Leupold has very good warranty and customer service - unfortunately it needs to be used fairly frequently. And it does me no good on a hunting trip.
I can speak personally for zeiss customer service. I had a really old conquest that developed an issue with the paralax knob slipping, I sent it back and within a few weeks a brand new hd5 was delivered to my door, I was blown away..I have 4 VX6 HDS and I like them a lot over the old VX6 model. I never owned a Zeiss and I won't because Leupold has a better warranty system. If something goes bad with a Zeiss and it's not an easy fix, that scope has to go back to Germany and could take months for you to get it back. Leupold customer service is top notch and turn arounds in the custom shop are fast. Leupold also has a reticle cant feature in the scope which I really like for long shots. It definitely helps out in the field. Zeiss doesn't have that or an illuminated reticle for that matter. Leupold gets my vote.