Yes, Nikki does have a great voice. I'm always sad that she just has "Whipped Into Shape" to show it off. I've heard other stuff she has sang (not just TTB) and her voice is excellent.
And endurance is a big part of ACL...it's a very difficult show and I think Nikki has been well prepared for it through Blonde.
I mean, people can speculate about how well she will do, but I think most agree she is a step up from Charlotte and so, I will keep my fingers crossed for her that we all get a chance to see her and form our opinions.
It's kind of sad though...if she gets Cassie, bigger and better role...but LB won't be the same without her energy both on stage and at the stage door.
"Less Of A Marilyn, More Of A Jackie"
www.richardhblake.com