Want to use ATT LG Optimus G Pro (E980) on TMobile... Have a few questions. topic

Anybody have experience using the ATT E980 unlocked on TMobile service? LTE bands work well on the phone?

Also I've been searching for ROMs for the past hour, and cant seem to find any with a "hacked hotspot" aka "unrestricted tethering". I have the unlimited TMobile plan, and need a ROM with the unlimited hotspot feature. Does anybody know of one?

Thanks!