I tried one last year. It was awesome in low light conditions it really does extend your shooting time compared to some peeps.But i could not acheive the same accuracy as when i shoot with a peep sight. I also did not feel as confident when shooting with the no peep, i was constantly looking down at the no peep and then back up at my sight i was always afraid i would move when i looked back at my sight.

If you do decide to buy one, make sure you have someone with you to help you set it up, it can be a real pain in the a$$.