Ascension does add extra choices, but you've got to be willing to take them..

A lot of the changes are not readly apparent, but they are there.

What, extra choices before the final battle? If so, what are they? I was pretty sure it didn't.

It expands and alters the Balthazar discussion, making it possible to swing him to your side, or, I believe, talk him into killing himself.

Also keep in mind that there are other mods that expand on TOB content, including the various NPC mods with TOB content, the flirt packs and banter packs which contain TOB content (the flirt packs give at least one new epilogue to each romance NPC)...

Oh, right, I didn't realise it altered Balthazar in the monastery.

Pocketplane have a lot of stuff..
I prefer new NPC's and added romance, dialogue and quests.. that's what I am going for ;)