I have the Simmons. Recently bought a Nikon 4x Prostaff rimfire. There is no comparison. I never warmed up to the Simmons: the reticle is too thick and it is not a clear scope. The Nikon, on the other hand, is remarkable. Save for a little longer.
+1
I just posted a range report for my 10-22 - and it has this scope - the Nikon Prostaff rimfire 4x. Very bright and clear optics for the price. Spend a little more and get quality.