I have a 4-12x40 tactical. I have had it for over a year and have been pleased with it. I have it on a 18" AR-15 and used it for prairiedogging a few time this summer. The glass is clear about like an Simmons Aetec or bushnell elite. Mine is 1st focal plane and etched reticle and has held up for use so far.

As far as the higher magnification one I couldn't say what they are like, but this one has been pretty decent for the money.