I'm using eCS 2.2 b2, (on two machines), and I like the look of the new FOC, but it does not work with all programs, has more than a few bugs, takes too long to load and has too few options with respect to X-File.
And since X-File works just fine still, I use it. It's ugly, but its functionality, speed and customization can't be beat!
Looks vs. performance and practicality; a no-brainer for me.