There are 2 outcomes; we lose and the 3-5-2 haters come out of their caves with stones in their hands or we win and the 3-5-2 is praised as the greatest thing in the universe.
I'm not a fan of 352 and I don't hide it at all. I think Allegri should have tried out the 4321 earlier in Serie A so he could deploy it in CL. He didn't do so and now he has to go with the 352.
Anyway attitude will be more important than formation but I still don't like the 352. I think it's limiting us and forces to play the slow build up play game. Pereyra/Coman and Tevez/Giovinco behind Llorente/Morata would allow us to play faster and more direct which is necessary in CL IMO.