Should I buy Subnautica: Below Zero on Epic Games sales?

Hello guys.
I'm considering buying Subnautica: Below Zero EA on Epic Games Store because of that 10$ off during sales. As I saw, on Steam never went that low, and I don't know if it can go under that on Steam Summer sales considering it's on early access.
So... ignoring it is on EGS instead of Steam (a fact that I don't really like, but I can live with it xD), do you think it's a good deal or not?
Thank you!

PD: Please, avoid answers complaining about Epic, I prefer Steam by far but if Epic has better offers, I'll buy there.