The system of tabs makes it easier to quickly move from topic to topic. Or, if you set it up like I do, with a new tab each day, it makes it easier to move from day to day. If you use Word, you have to either use 1 large file and continue with it each day (bulky) or create a new file for each day's notes (time consuming).
Also, One Note automatically saves your tab. At the end of class, all you have to do is close it out.
The only downside for me, if you can call it that, is that not very many people have it. So when someone asks for a copy of a certain days notes, as inevitably happens, you have to cut and paste into a Word file. Not a huge hassle, but extra steps.
i have onenote installed. is it worth using it? I dont see why its better than MS Word (but have yet to really look at it.) can you explain what it does that is so great?