Librem 5 is my daily driver, buy I'll just give links to good, extensive reviews:

https://forums.puri.sm/t/nine-months-librem-5-as-my-only-pho...

https://forums.puri.sm/t/a-l5-review-1-week-to-my-ready-to-s...

Tl;dr: calls and texts work fine, battery life is not as good as Android/Apple but usable. Also you can replace the battery on the go.