I feel more skeptical right now than critical. I hope that Maxis have some interesting things that they want to bring to the sims4 with this. Just eco living in the sims4 alone does not sound very interesting to me, but if they add more things to it so that it will have meaning, and offer new ways to play the game, then maybe.
I think a pack like this would have worked so much better if we would have had farms or cars though. Just like I was missing deep diving in IL.
I hope that being more eco-friendly is not limited to just rabbit holes.