This game is beautiful in itself thus far, but unfortunately if you have played the first one like I have and then jump straight into the second one there are a few things you miss from Subnautica 1.
Mainly game play aspect and incredibly chatty characters and PDA that wont shut up at first.
That and a few annoyances with the subs controls and add on's that explode when you try and dock them because there is no reverse camera.
They are still working on it so perhaps they iron out all the kinks.
But I got half way and got fed up with the game and rage quit.
Will try again in a few months to see if they have fine tuned the game / proper release of the game. Suppose I cant really judge to harshly now as the are not finished with it yet.