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Their coverage maps offer a good indication as to what to expect in a general area, but they lack the precision necessary to perform due diligence before making

Their coverage maps offer a good indication as to what to expect in a general area, but they lack the precision necessary to perform due diligence before making a switch. I work in Manhattan, where I've twice had the misfortune of occupying a cubicle in the exact center of a building. Both T-Mobile and AT&T report full coverage for the entire area, but the many micro dead spots in homes and offices can be a real problem. T-Mobile in particular licenses spectrum that can't penetrate walls as well as some other parts of the spectrum. I'm sure there's a startup for providing user sourced coverage data at a very granular level, though it would be difficult to deal with the constant changes the carriers are making to their networks.

toomuchtodo 11y ago
Do you have a phone that'll use WiFi for cellular? Most office buildings are effectively faraday cages. On T-Mobile, my phone will route SMS and calls from my iPhone over whatever WiFi network I'm on, so network quality in dense areas becomes less of a concern for me (except when I'm mobile; but then, I'm out in the open, so signal quality is better).
jcampbell1 11y ago
T-Mobile has LTE band 12, so if you have a iPhone 6S it may work better now. The 700Mhz frequency is a good addition for T-Mobile, as their biggest problem in my opinion is a lack of coverage when traveling. It also penetrates walls very well.