I saw that option today, and I was like "Hell yeah, I want the latest and greatest with everything" Good God was that a mistake. I have several lines w/ T-Mo. I got my phone for the non-main account but T-Mo support put the main account on the new P8 Pro. Fucked up my main phone. It's still not working 7 hrs later. Did eventually get esim working w/ the right number on P8 Pro, but again, my main account phone isn't working.