I'm not gonna touch this game until they take another pass at Performance and AI. Performance got better in 2.2.2 but its still inferior to what it was before Megacorp, and we were promised better performance with the end of tiles.
I heard something in Stellaris' code is kind of fucked up, I don't remember - something about Threading and how the game aparently pretty much dumps both running the game and the graphics on the same thread. I'm hearing gringos with super-computers complaining about this game.
Its kind of glaring, considering how CKII Holy Fury runs great, even on my potato.
The AI is also completely braindead, even with Glavius' AI. I got attacked... ONCE, even through my starts usually have me as pretty damn weak. I recently played a game on Grand Admiral with Glavius' AI, and by 2250 I was stronger than all the Nomads and non-Fallen AIs. My fleet power was 1.5k so what the fuck.
Also, Anomaly science boosts are severely underpowered because they increased tech costs.