I Can No Longer Recommend Google Fi
I quit a couple years ago when my phone left me in a position where I could not get any connectivity from the TMobile or Sprint towers, nor wifi.  They tried to use the excuse that it was tower maintenance yet couldn't explain why wifi connectivity wouldn't work.  As someone who is on call 24/7/365 it was unacceptable and I moved to another provider. Their phone support was absolutely useless.