WetGeek it does, I posted a thread about Plasma here.
It works, and it seems to have some improved battery life for me, but I wouldn't say it's ready to be a daily driver. Of course, if you don't mind bugs and want the latest and greatest (do you use arch btw?) then you may be happy.
It takes an eternity to go from log-in to userspace, Kwin tiling scripts are hit and miss (mostly miss), and it has some other bugs. On the plus is the battery life, less jelly scroll on my display, animations and visuals seem a bit better.