Thinking about purchasing planetfall. Need alittle motivation tho

As title suggested, I wanna buy planetfall. I'm not exactly sure if I should. I have seen nothing on the game, nor have I watched it. I love AOW4 but the lack of cultures is kinda killing it for my as I play reaver, dark and barbs and no other faction hits that play style. I am aware they are adding much more like a new war faction the 5th. But I don't wanna wait that long. Is planetfall worth it?