Yeah, for those who care that is huge that US Mobile gives priority data. (your really the hero of the cell service savings US Mobile *LOL*)
I think
@gathermewool and others need not place to much credibility on data speeds with a cell phone. Unless there is some specific reason I dont think anyone can tell the difference lets say between 40Mbps and 400Mbps ... except, I do agree, it is fun on speed tests to see those speeds. I have done them myself and posted in here I think the highest ever was a couple years back on T-Mobile UC within sight of the tower, just under 800 Mbps. . But real life on a smart phone screen it wont matter much. I think he will be happy with the service. I do have more recent tests like you in the hundreds of Mbps using USmobile with the tower in sight.
Though plan cost is close with Mint. $30 plus taxes and fees. US Mobile $28 INCLUDING taxes and fees for two lines. At that price he does get US Mobile Warp with data priority. Also the auto top off isnt such a bad deal if he runs over. It's seamless and on top offs if he doesnt use it all, it carries over.
I understand being on the fence what to do, many years ago, over a decade now, before I switched from a mainstream service to a MVNO I actually got a cheap phone and new phone number to try out. Once I did, I never went back to traditional cell service and switched all 4 phone lines at the time over to MVNOs. (except the last two years on a T Mobile deal which I now canceled) Kids gone now, so just my wife and I.
I think no matter the speed, latency is more of a concern and network traffic. So like you, I think, I am staying with their Warp service just because you made me aware of data priority with it. But depending on area you live, its nice to have two competing options even if you dont have data priority with T-Mobile. Ugh... but I am sure I will want to test the switch thing for fun. *LOL*