But there are a few issues I've had, of course your mileage may vary

1. When my primary phone broke, I had great issues getting Google Fi to work. It seems the phone/sim process often hung when making APN changes, manually or with Fi app 2. Battery life is fantastic, but by default it kills apps after five min when the screen is off. You'll need to allow for music apps or whatever you want running when screen is off

It's great for hiking though