These latest few episodes have been kickass.

Colossal titan transformation was fine. We've already learned that different people inheretting titans give slightly different potential. If Armin is suited, so be it.

Eren analysing his way through a battle is so OP in such an enjoyable way. I don't know if the Assault titan having such transformation stamina is its perk, or whether it's just now an Eren thing but whatever.. good shit.

As for the next fight, well Eren should be able to build a lance against that armour now. Along with the fact that he already kicked its ass last time by busting his joints, the only thing not working in his favour this time would be:

1) sudden attack by beast titan.
2) Jaw growing its legs out and fighting again
3) lack of stamina after fighting for so long

Action aside, I think my favourite thing about this episode was that there WAS a plan that was more than just "We eat Warhammer Titan, we win", and they had the intel and plans to take out every single titan if possible. Fucking Armin man..