Looks good. I was skeptical until I realized that whenever I need to see something up close, like closer than a foot these days!, and didn't have my glasses I would curl up my index finger and look through the hole that made and move my hand to focus it. It worked, the Eyepal/Merit work and a hunka electrical tape with a tiny hole it it work too, so your rig should as well. IME the pain is figuring out just where you want it on whatever glasses you mount it on. And any fuzzies or dust that get in the hole mess with the system.
The big thing for me is that I can focus on the front sight and the target as a unit, or at least that's how it appears to me. The rear sight has always been a blur in most sighting systems for me, but the front sight and target have to be able to be seen. Have a bit of a problem with scopes now too, the more power, the more it seems things fuzz up. If I ever encounter a competent eye doc that will get me a working prescription maybe that will be easier too. There has to be a doc out there someplace that shoots!!!