Wouldn't be a Bioware game unless something went wrong but the studio is working on fixing the import Sheppard feature that has been giving problems to almost everyone.
Apparently you can't just import straight from Mass Effect 1 nor from Mass Effect 2 and if you didn't make any changes or use the demo to update your character, it wouldn't be importable to Mass Effect 3.
http://kotaku.com/5890992/bioware-sa...-import-errors
Also confirmed is cloud saves from Mass Effect 2 are not compatible with Mass Effect 3. This one probably won't be fixed any time soon or even at all.
http://www.eurogamer.net/articles/20...ves-from-cloud