Salseman comes to your door "we got this great holiday deal where you get to live a short life on Earth, then die, after that you got the possibility of going to heaven forever or burning in hell forever, you want to take the deal?"
That is the popular perception of the pitch but that does not match the sales brochure as I read it. It's more like:
"I'm going to give you two main things: My general characteristics and free will to do whatever you want with it in this experimental and temporary environment. Your task is to figure out how best to live with those characteristics in the time granted you in it. (I'll even give you hints).
If you make progress in that direction, I'll show you the final vision of what life here could potentially be if everyone did. If you ultimately choose that vision I'll make it permanent in my world.
If not, I'm taking back the life (spirit) I gave. I understand the hellish regret that you might feel when this is concretely revealed but while death is forever, your regret, and all else, will end. Your choice."
If you want to say that's an unfair or brutal process, would you want to spend forever with anyone who had not successfully been through this process? Besides, worst case, you got to live a free life, for no charge. What's not to like about that deal?