I use Google Fi. If you're not a data user (which I'm not) then it's the best deal. What I've noticed though, is that the cell phone's hardware also plays a huge role in Vermont (combination of hardware and driver probably). My wife and I both use Google Fi, but her phone is consistently better at finding and holding celltower signals than my own. She can connect while my own phone insists there's no signal. Really ticks me off. We both have Motoralas but different models.