It wouldnt work for him based on his posts. Google Fi uses TMobile.Consider Google Fi as well. Service is great, pricing is great and they always have amazing deals on phones.
He can do better with what he is considering. At $50 plus taxes it's not that cheap either. Gets a lot cheaper for a family though.
https://www.tomsguide.com/us/project-fi-faq,review-4530.html