We can't take gravity with us. Of course, being weightless for the first time would have its perks! But have you considered the fact without it you can no longer tell which way is 'up'... what even is up? Normally good ol' gravity holds all our bodily fluids down, but in space, they'd have a mind of their own. Our bone density would begin to evolve I suppose. Nobody really considers the fact we would become an entirely new species. So at what point does the term 'human' end?
// x6 photographs taken seconds apart showing the earth spinning in contrast to the Milkyway from Coral Coast, Fiji.