I don't backsweeten my cider (I just follow the simple Sam's Choice recipe thread here; 5 gallons of juice + yeast) and it comes out fairly dry, which is how my wife likes it. It is primed with juice and any sweetness added during bottling is consumed for carbonation.
I just backsweetened some cider with Truvia and primed with brown sugar. I have 3 gallons of Apfelwein that is 5 weeks in to the process and I am thinking of just carbing.
I don't like ANYTHING sweet, so the only cider I've had has been dry.
I'm trying to remember when Edwort brought some to share with me if it was carbed or not. I can't remember! I think it was carbed. But dry and carbed is nice if you liked carbed cider.
I've done it before. It's turns out just fine if thats what you like. I only started back sweetening because my stuff had been coming out too dry and I didnt feel like babysitting it and watching a hydrometer. My cider is still fairly dry and I keg it and force carb it to about 1.5 - 2 volumes