Perhaps somewhat ironically, I've started feeling like Game Maker Studio is a far better choice if you're looking to make a strictly 2d game. Despite being someone who works primarily in C#, I try to avoid Unity like the plague nowadays for all of the other reasons outlined in the thread.

Unity keeps rebuilding the core foundation of the engine which means at any point the work you did could be invalidated. So now everyone's operating on a different version of the engine, trying to solve bugs related specifically to that version and it means if you actually need something from a later one you're SOL.

Whenever I've worked w/ Unity I've felt like I spend more of my time struggling with tooling than actually making a game. From a more skeptical point of view I understand why: It's because it means they can create a marketspace where you have to buy additional tools to make game creation more robust. From a developer point of view though, it results in a nightmare.