It depends. They credit you back if you don't use it, and since I regularly don't use much of anything because I have wifi 99% of the time, I get credits of over $9 a month. Better than paying X amount because you want a security blanket (or because that's the lowest plan they have) and then never getting any of it back when you don't use it all. Or getting raped if you go over the amount you picked that month.Google Fi looks like a fucking rip off? $10 a GB? Suck my dick you clowns
My plan literally costs me $21 a month plus whatever fees. Works great for me, not so great if you use a ton of data.