Greetings!
I have the 4x matte "rimfire" model on my Ruger 77/22 All-Weather (.22LR) and I absolutely love it so far... great scope! I think the reticle is better than the Leupold for low-light use, it has thicker outer bars that are more visible when things get dim. The brightness and clarity are excellent, and it doesn't seem to be very picky on eye position like some scopes I've owned.
So far, nothing but good things to say about Nikon Prostaff scopes...
Best wishes,
Bawko