Thought it'd be a useless feature so i only just tried it tonight,but it's surprisingly fun.
Everytime it dies it respawns after some time,and follows your fast travel just like a companion.
Great out in the open,but tragic when you go inside buildings,it gets stuck everywhere.
I was thinking though,if it follows commands and can fast travel with you and respawn,why don't beth allow hacked bots to become part of your settlements?Hack a bot and tell it to go to whatever settlement you want,whereupon it'll become part of the settler count.Sure,wouldn't be much use for growing crops or running stores,but they could put in a patrol feature where you choose it in commands then lay down waypoints for bots to patrol.I'd love a few sentry bots patrolling my walls
I've grown attached to my bot.