Definitely needed. I'd be happy to go without assuming the character creator isn't hobbled by dumb angles and lighting, but I have no confidence that it won't be. I can sympathize with the poster who started and re-started ME2 because s/he couldn't get the face right, because I did the same thing. I wish they'd take several pages out of the Saint's Row 3/4 playbook as far as creation, because that is one of the best I've ever used.
What we really need is for the CC to let you fully rotate, zoom, change the lighting, test a variety of facial expressions, and test the animations while speaking. Ideally this would still be available at any point in the game for anyone who wants to use it, but if we can actually see what our characters look like from different perspectives, I'm satisfied.