I have an Advantage and for the price/application it is ok. I have two Sidewinders and for the money I like them except for the reticle choices.I had an Air Max, hated it instantly, it left almost immediately, well the replacement as the parallex adjustment died in 2 weeks. I looked through a Frontier and was really disappointed with the glass. I have 6 Sightrons love them all. 4 STacs and 2 10-50×60 SVEDs.