I had the Sprint plan. I liked it. Hard for the average person to get on it though. You would have to pay full price for the phone and then activate it (while switching your old phone number over) and you couldn't do that in store. If you bought say a new Apple phone at full price and wanted to finance it through Apple/Citizen One, Apple would make you activate first which if you chose Sprint would invalidate your BYOD plan. That was a mess to resolve. And it was even more painful if you had multiple lines. So you had to be pretty savvy to get onto that $0 plan... which means those that did are also savvy enough to switch to something else if they are price sensitive.

That being said I expect with the merger that prices will go up. Maybe we could get some MVNO deregulation or something.