Put one on my sons 7mm-08 this year and was concerned about the elavation and windage adjustments. They didn't seem to have the solid click that I was used to in all the scopes I have owned prior. I bought it online and have'nt had the chance to compare it with another Nikon prostaff.
After having my son sight in the gun, I was concerned with the loose groups and was thinking that those adjustments might be moving on the recoil? I had already been rattling dozens of rounds though the other rifles and said "that's enough for today".
Took it out a couple weeks later, double checked the mounts, adjustments and had a much better group. Could have been fatigue before? Set the kid loose during deer season and he did kill his deer with one well placed shot. So, after all that stressing it did do the job.
Had a chance the other day to compare it to a Bushnell elite and in my opinion it did gather light better and had better clarity at dusk.
I still need to see if there is an issue with the adjustments compared to other Prostaffs. But, outside of that it seemed to be a good unit for the price.