I gave 'Deep Breath' a second viewing last night. This time it was fairly easy to ignore the bad Clara focused bits and just enjoy Capaldi's performance. Most of it was the confused "Bitey" Doctor rambling and raving. Then Capaldi's version of The Doctor seemed to finally arrive during the final showdown with the half-faced-man.
If that's how his Doctor is going to be, with the calmer tone of his character, then this might be the best series of new-Who yet. Or maybe I'm wrong and he's still going to be the hands-wavey, jumping-up-down, twirling-around Doctor that we saw in the first manic two thirds of 'Deep Breath' (And all the other new-who series).
I guess we'll find out tonight (Fingers crossed).