I haven’t tried it yet but ONE Plus International is supposed to have double the standard snail speed (I’m still in my 5GB high speed). If it is indeed 512 then it should be serviceable for basic stuff.

Local SIMs are the best bet but this is great for transits and short visits where getting a local SIM is either a pain or just doesn’t make sense. I use it as my dual SIM secondary line so occasionally if I’m in a dead spot on the primary I can toggle and get data where I’m at. It’s generally a great thing TMO offers that the other big carriers don’t. If they could just get rid of the 50% rule it would be hands down fantastic.