Originally Posted by DArtagnan 
Isn't it going to emulate the ME dialogue system?
As in one-word choices?
Why would you need a timer for that - it boggles the mind…
I like the idea, since, as I said, it forces you to think on your feet. At least I always get tempted to try to reverse-engineer cRPG conversations — figure out what whoever I'm talking to wants to hear, and then pick those lines. If I had to do this fast, I would find it easier to stay in character — to play a role rather than a game. The *length* of the responses I have to choose from is immaterial, and in fact short ones would probably work better since they're easier to process at a glance.
I'm sure this is contingent on preference — somebody who has a strong liking for deliberative gameplay (e.g. strongly prefers TB over RT) would probably hate it.