They are a good scope for the money what I like about them is a local shop has a direct exchnage deal on the warranty. If your scope breaks they will exchange it on the spot for another identical model.
I have 2 of the 4-12x model 676' s on my CZ Varminter and on my Marlin 17VS that I just got. One has been great while I haven' t had time to get to the range to shoot the .17HMR.
I did however have trouble with one of their cheaper 1-3x scopes that I returned and later traded off it' s replacement.