Yeah I'm not a huge fan of Google, but Fi has never treated me wrong. My bill was cut down to a third of what my Verizon bill was when I joined 7 years ago, and I don't think I've had any increases in that time. Their support is shit, I'll admit that. My card was stolen and I told them how I'd been a customer for (at the time) 5 years, never missed a payment, and that when my new card came I'd pay the past due amount happily - and they threatened to suspend my service.

That being said, all carriers are terrible, it's a lesser of multiple evils game.