Initial difficulty setting up but worth it - Meprolight MEPRO Foresight Red Dot Sight 1x20mm

I too had trouble setting up the doubleshoot app but fortunately I got through to customer service, he was helpful. For some reason my serial number was registered once he corrected that the app was free. No monthly fee. I like the optic's recticle flexibility wish they would deliver with the upgrades as promised. Only other thing is I notice some light bleeding around the borders.