I've been fulltiming for two years now. We have 2 phones on Verizon and one on Project Fi. In that time we have been perhaps 2 places where there was no cell service of any kind on any of the phones. We have been in perhaps 6 places where data service was unusable on Verizon. In maybe 2 of those, I got at least some data on Project Fi. But we have been in a dozen or more places where Project Fi data didn't work, but Verizon did. And almost all of these places were commercial campgrounds, not boondocking. I would expect boondocking to have even worse results on any cell phone.