Boost is not a very good service to use in one days travel from West Virginia to Pittsburgh to Washington DC to Baltimore and finally stopping in Wilmington Delaware . I noticed call quality from West Virginia up interstate 77 from Parkersburg WV to Wheeling WV to be bad and I mean 3g coverage . Pittsburgh across to Philadelphia the congestion of Sprint and Ting users cause bad call quality and internet was dismal. Every city I've visited on an iPhone 6s Have suffered some type of slow speed . A job venture to The Rocky Mount area of North Carolina turned into a roaming experience that eventually caused me to leave them completely ..