T-mobile does actually honor their unlimited plans (unlike AT&T and Verizon). This article is about people explicitly breaking the TOS on a non-unlimited part of the plan.

I switched to T-mobile recently and it's been a breath of fresh air - I think people are used to being skeptical of mobile providers after years of abuse. The first intuition of commenters in this thread was to find something to criticize, despite that fact that T-mobile never promised anything it isn't delivering.