I would have been a very satisfied Aeon user had it not been for battling gnome. If you look at my comment history, I have described the issues I have had. After about 7 months I used KDE on a friend's computer and switched the same day.
I think the best thing is that I don't have to install anything to make it work like I want, and as such there are no incompatible plugins that leaves me with a broken desktop functionality for a week or two every time there is a new release.
That is an annoyance, but the most annoying things are all the small things that just don't work. Focus issues. Multiple screen issues. Date format issues.