Xbox player diving in

Ight so like I am thinking of getting helldivers2 on my xbox since i know my pc won't survive trying to run it and I played it once and a friend's house granted it was on easy when I tried it out. Should I wait for when it goes on sale or drop the 40 bucks for sweet liberty?

p.s. I am more towards slow paced games so I am curious if there is anything to know about helldivers2