I don't think there's someone who still hasn't played this game. But in case there is. Buy it, play it. You'll love it and you'll lose a year of your life on it.
Don't even think about it. press the buy. now.

TLDR: This game as a lot of potential. But plagued with a lot of inexcusable bugs, and from the current way of things, it seems the creators care more about lining their pockets with more money than actually giving players who already bought the game a whole while exprience.
WAIT FOR FULL RELEASE AND THEN DECIDE WHETHER TO BUY OR NOT.

A great game, but suffers a lot from "pre-alpha" problems. Looking forward to when this game fixes the problems and released a full game. Just hope it'll be sooner rather than later.
4 million copies.. Sure means they have enough money to make it happen quickly.

EDIT: With the introduction of micro-transactions I am forced to change my review to currently "not recommend" this game. Wait for full release if one ever comes.
The current update and introduction of micro-transactions speaks badly on my mindset of the creators. Money > customers. Pain and simple. I read their logic about wanting to fund the eSport event and that's why they brought the paid crates. BS.