I've been enjoying this for years by using prepaid. It's good to see T-Mobile trying this on a postpaid plan, but the One plan has been receiving a lot of criticism for being less than honest. All video is throttled to 480p unless an additional fee is paid.

If J.C. Penney's experiment with honest pricing is any indication, including taxes and fees in the advertised price will not become a staple of cellular service.