Talk about the charred, crispy pot calling the kettle black. T-mo has gotten worse over the years, and isn't great, but getting called out for deceptive business practices and bad-faith marketing by
AT&T is like Google insulting another company about ads in search results. The only company trying to throw poop while more covered in it is Verizon.
Also, those miles of coverage should have a giant, fat asterisk on them that says "AT&T's coverage map is flagrantly lying about where you actually get a signal". I have T-Mo, most of my co-workers have AT&T. If I zoom in on a small town near where I live, AT&T shows the entire thing as dark blue "5G+" coverage.
But I know half the time they can't get any signal inside a commercial building there when I can--so much so that people who work there often ask what carrier I'm using since I can get a signal when they can't--and there's a road on the way out of town that AT&T's map says should have the best 5G+ coverage that so reliably drops connections people driving home on meetings will outright say that they're going to lose signal for a minute when they get near.
T-Mobile's coverage map used to be pretty accurate and is
also lying now (seems they've removed the hex view that used to show real signal), but at least it shows weak coverage where there is in reality none, and in practice I get better and more reliable signal than anyone I know on AT&T does, so the maps are irrelevant.
TMo has international data roaming included.
This.
T-mo used to be really good, it's declined noticeably but is still pretty good... but until one of the other carriers offers unlimited international roaming at no additional fee, any plan comparison to me is comparing apples to bruised-up lemons.
For someone on a plan with two phones that cumulatively spend 5-6 months a year in another country, having to do exactly nothing to enable data roaming while there is absolutely invaluable. Get off the plane, phone works, you have my business.
For another $50/month, I can get a decent number of gigs of high-speed data and regular calling, which I do sometimes for work, but 256kBit is plenty to use a map, check my email, look something up, message people, and make a FaceTime audio call, so is all that's really necessary.
