I regularly see it in Atlanta in the big tech business areas (Buckhead, Midtown, etc) but it is hilariously bad.

Whenever I notice my cellular data has regressed to 3G speeds and reliability, I look up at the network status and see “5G UW”.

I don’t know if they deployed it without enough bandwidth on the trunk to handle all of the users or something else but I generally have to toggle airplane mode to drop back into 5G or LTE to get off of it.