Google voice is not a cellphone plan.. Google voice is basically another number you can have to give out, you can give away that new number you get from Google, then you can forward that call to any number like your cellphone, you can also send text with that google voice number, but it will be taken off your text messaging bucket.. You can also make outgoing phone calls using that google voice number, but it uses your cellphone minutes..
I use Google voice for work, instead of giving out my personal cellphone number.. Is that easier? :)
Anyway, the best unlimited plan is something YOU can afford, and not to mention a cellphone service that’s promising..