Less battery life, better graphics, beautiful widgets and an annoying sense of betrayal to the Gnome developers. Why a sense of betrayal when I say that I hate it, because it does have some great features!
I have used Gnome or Unity for most of my linux running days and really get how to use them and why they are great graphical interfaces but there was always something missing, something that is well integrated to the KDE plasma desktop: Widgets. These little boxes of quick, useful information make it great to turn on and immediately see what you need (for me it is the latest Dilbert comic and my CPU stats.
The only Desktop that hasn’t got much attention by me has really been kde because of its very windows-like appearance and also because of the system requirements. The GUI is very heavy on resources in comparison to both Gnome and Unity 2D, Unity itself is right on par with kde. Why make a GUI so resource intensive though, is there a reason? Yes, there is a great reason that is very apparent to how polished it looks and how brilliant it acts.
All in all kde does annoy me but it also is a very useful desktop environment once it finally loads up (being used to much faster sign in times with Gnome and Unity). So, even though I do not like some of the features it totes because they slow it down it is much greater than many GUIs though Elementary OS is even better with their polish as they make changes to also better improve the programs which it totes (noise is a great media player interface). I hope that I can learn to like it over the next few weeks and I will post an update after using it as my main GUI for at least a week maybe two.