I have a rich, luxurious spendy-pants Cricket service now for $35 / month. In my area, I can't really get away from the fact that AT&T has vastly better coverage than Sprint and T-Mobile (having tried all three). I tried Airvoice for a time but I found the gaps in data plan troubling (after 250MB usage, it gets cut off and you must call or email for the other 250MB to be activated). It's that moment when I'm in an unfamiliar city trying to look up information that it runs out on me. Just this morning I sent out the phone to the buyer.
In the future, I hope my SO joins me on my Cricket plan and we get the $10 multi-line discount. That'll result in $65 for two lines with 1GB LTE and unlimited "slow" data.
Oh, and at the moment have an embarrassingly rich OnePlus One. I got an invite and took it for a spin, but I'll be selling that and going back to a 2014 Motorola Moto G this week.