Ah, I had a very minor issue with a turret screw and they promptly sent me a handful....yeah, prob not a "warranty" experience that you are looking for
However, I don't find their warranty verbiage ambiguous.
Its lifetime and transferable for the scope less the "electronics" which is the reticle illumination only. There is not another bit of electronics in their product like to my knowledge.
There have been a very few instances of posts on the Hide where someone had an issue with their ZCO scope and it sure seemed that ZCO was uber responsive (well, except for an asshat that over torqued rings, cracked a lens, and would rather whine about it on the Hide than actually send it in for their offer to repair....dunno where that ended up)
"In the highly unlikely event that a problem occurs with your ZCO riflescope, we offer a transferable lifetime warranty that covers mechanical and optical defects due to materials or workmanship under normal use for the life of the riflescope.
At our discretion, we will either repair or replace (with a product of the same or similar model) a defective product after prior thorough inspection.
Exceptions to this warranty include intentional misuse or abuse, unauthorized alterations or repairs, modification or destruction of the serial number, improper assembly, negligence in handling the product, and damage by fire, flood, or other natural disaster.
The electronic components built into this product are covered by a limited warranty of 2 years from the date of purchase. This includes defects due to materials or workmanship under normal use."