William Strife just finished up his playthrough/tutorial of Subnautica and has a very interesting ending note.
He said that he couldn't recommend buying it at this time, even on sale, and that while "I love the game. I hate the software." He said that while the game itself was good, if still a little empty and incomplete, the software it ran on was just barely functional, with huge issues that made the game running on that software next to unplayable.