Total Wireless user here, I pay $100 a month for 4 lines. DD pays $50 a month for her single line. It's actually less because I buy the refills at Target when they are B1G1 10% off plus my 5% redcard discount.
It is on the Verizon network. We have unlimited data, but after I think 25GBs each it gets slower. None of us have ever reached that though so speed has never been issue. Dh and I don't really use our data, but I have 3 kids who do everything on their phones and there's never been issue not being a real Verizon customer.