I've been using Keynote for a year now and I really like it. I still haven't made my own theme (but that's another thing to do), but now that Keynote 2 is out along with the amazing looking Pages, I think that I will get iWork to have both. Now I actually use TextEdit to create handouts as it lets me save styles. I do miss having more control over things and every time I use Word it is frustrating. With Pages designed by the Keynote team, I think that I will use it a lot.