I don't even get 4G speeds almost ever. Bandwidth is always massively oversold. Often I can't even successfully load a random web page when I have 4+ bars of "4G".
Just posted 22/9 40ms ping in DC Union Station. It's 7pm and the place is packed with people playing on their cell phones while waiting. Maybe blame SF NIMBYs for not letting the cell companies put up enough towers or run enough fiber backhaul?
I am, however, hopeful that T-Mobile has this in their sights [1]. They have done more to improve mobile user experience in the past 2 years than the rest of the networks for the past 10.