I agree with the general sentiment, if your game is working well, don't update. A great many mods will not work in AE and likely never will, as the authors are long gone. The additional few things added by AE are not worth the hassle IMHO. I did update, accidentally, and now I'm stuck redoing my entire load order (which in my case isn't a bad thing since I really needed to "cull the herd") and it's a big pain in the buttocks.