I've just done my first root.
I used the all in one toolkit, rooted the phone, and then:
-Made a backup
-Flashed Android Revolution HD
-Installed Xposed and Sense 6 through Android Revolution HD
When I open Xposed in the app drawer, it has the following message in red:
"The latest version of Xposed is currently not active. Did you install the framework and reboot?'
HTC One M8 (EE in the UK)