The death of Unity
But now I can say, unequivocally, if you're starting a new game project, do not use Unity. If you started a project 4 months ago, it's worth switching to something else. Unity is quite simply not a company to be trusted.
What has happened? Across the last few years, as John Riccitiello has taken over the company, the engine has made a steady decline into bizarre business models surrounding an engine with unmaintained features and erratic stability.
Unity is imploding in on itself, and it's very sad to see.