Yes
I have experience with that particular frame, and the full-size version.
Mine has the opposite of Glock pig nose, the front polymer dips down and away from the slide for about 1/16th of an inch gap.
Use oem parts ( except for the magazine release, slide release, magazine release spring, pins,) everything else I have tried just does not work.
Assembly is easy, but you may have to sand the rails to get things moving right. Tons of support online, but not tons of fitment support from poly80.
There are also other serialized frames out that are that are glock compatible for around the same price.
https://www.glockstore.com/GSX-100-Frame?quantity=1&color=1
https://www.primaryarms.com/nomad-defense-glock-19-gen-4-frame
and for more
https://www.lonewolfdist.com/Timberwolf
Poly80 has pretty good customer service, and have sent replacement rails ( even though it's a cosmetic defect not a rail issue) for both frames at the drop of an email.