So nobody wants to be that lucky guy who entered Vault 69, huh?
I dunno. It COULD be great. Although, it also COULD be hell, what with all the rampant hormones flying all over the place, and it's of pivotal importance that you keep track of when it was that each of the 999 other occupants started getting ornery, and how long you have until the next time they go crazy on you. Then multiply that stress on you times 999, and have fun walking this emotional minefield, all the while the future of your vault DEPENDS on you being on "friendly terms" with at least a couple of them. It could very have been like a Japanese dating sim from heaven, OR it could have played out like the dating sim from hell!!!