Has anyone ever tried the Shadow PMG wireless pickup?

[nedley]

I have a few nice acoustic guitars and on rare occasions I'd like to play amplified.
I'd rather not have to drill into my guitars and I'd like to be able to move the pick-up from guitar to guitar. I was thinking it would be neat if someone combined a soundhole pick-up with a wireless setup.

A little googling came up with the Shadow PMG soundhole pickup. It looks a like weird and I only saw one nuteral review. Has anyone used one who could share there experiences?

https://www.amazon.com/Shadow-Electr.../dp/B00HUQFJN0

Thx -ned