T-Mobile's innovations in 2016 appear to be paying off. According to a Nielsen survey, T-Mobile subscribers are more satisfied with its service than its competitors, AT&T and Verizon. Thanks to this, recommendation from its users are more likely. The Nielsen survey includes more than 30,000 monthly respondents.

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Another analytics firm, BrandIndex, measured brand value through customer interviews. BrandIndex also reported about the uptick in T-Mobile's customer satisfaction rating and its rivals sustaining a declined customer value perception. Moreover, Computer World mirrored T-Mobile's satisfaction rating, as the company was rated as the best data provider in 2016 for offering more value than AT&T, Verizon, and other carriers.

T-Mobile CEO John Legere commended his customer care team and boasted about the company's grand slam.

"We have the best damn care team in the business - at this point, that's not even up for debate," Legere said. "But like everyone else at this company, our care team takes 'we won't stop' pretty literally. They've got their sights on being the #1 care team in any industry, anywhere - not just wireless. That was so 2016."

Verizon is a curious case, on the other hand. The Nielsen report showed that the company trailed behind its competitors badly. The company's subscribers have been unhappy with its service since November 2016. The BrandIndex survey also revealed that Verizon's value suffered a huge dent since December, dropping to the company's lowest in six years.

The Big Red is boasting of its shift toward 5G technology and its LTE coverage, but its customers are not happy. These subscribers were likely dismayed by Verizon's decision to impose a 200 GB limit on data, even promising to punish those who violate the cap by forcing them to a tiered plan and banning heavy data users from the network for good.

Sprint is at the bottom of the list, but its satisfaction rating is climbing steadily, according to the Nielsen report. It may even beat AT&T for the third spot soon.