More specifically indoor coverage as 700MHz is better at building penetration. But keep in mind that t-mobile only has 700MHz spectrum in 12 States and only 5+5mhz, as compared to aws, which is their main lte, which is in some places 20+20mhz.
Unless you meant to post a different page, that doesn't have anything to do with this. I already posted the global network specs. It doesn't tell us anything about the Tmobile network specs.