Finished completely.
Brought near all assets (one couldn't make it due to a particularly evil choice that I didn't want to make) to final conflict and 100% readiness from multiplayer + promoted them.
It really brought home all the choices you'd made throughout 2 previous games. Bummer for PS3 players that missed the 1st.
I didn't have a problem with the ending at all, and will explain why once it has been out long enough for spoilers to be a reasonable thing. (or, we can open a discussion thread with a MASSIVE SPOILER WARNINGS title.)
Really enjoyed the game, worth every penny.