I like that it can be used in multiple ways, from simple note taking to full blown document editing! You have options as far right or left side of page are not available anymore when you open wiki pages (I think this is because new features were added).
Sometimes there's no way out if your cursor accidentally goes too close one particular word/symbol - meaning having another copy doesn't help much either unless its saved before hand which might get messy sometimes with large documents being edited by many people at once so i had some issues getting things done efficiently but thats just me though :P Overall great product!! It was pretty easy setting up wikis between our teams within different locations using microsoft team online service through web browsers only :).