I have Steiner P4Xi 1-4x24 scopes on a couple of AR-15's and they have been very good. I primarily shoot them in 3 gun matches so they get bumped around some and they've held up well. The glass is good, the illumination is reliable and daylight bright, and they are fairly light so I have no complaints.
Overall, I like Steiner based on my experiences with these scopes, but I have not used any higher powered Steiner hunting scopes so can't comment on them.
