The zeroing process was easier than I expected as the windage and elevation screws do not have an audible or tactile click. You will need an allen wrench to make adjustments but one comes in the box and I always keep a set in my range bag.
Training article
Viridian RFX 35 better than an SRO?
Upon initially getting the Viridian RFX 35, I was skeptical about the durability of the optic. Testing it for the last 6 months has alleviated any of those fears.