I'm a long time customer of T-Mobile. I live in San Francisco and recently purchased an unlocked iPhone 5 and signed up for another 2 year plan.
I am very disappointed with the performance. In downtown San Francisco, I get 3G coverage at best. In all other parts of San Francisco and the Bay Area, I get mostly Edge, sometimes I get 3G. Hence, I'm unable to perform simple tasks without frustration. Although t-Mobile advertises a "super fast 4G network", I've never experienced it.
Has anyone else experienced this? Will this be addressed anytime soon?