Just an introduction to say that I now use XFCE exclusively on all my equipment - 4 Intel/AMD workstations and 1 Dell Xeon server. I switched to Arch Linux about a year ago and haven't looked back. It runs XFCE like a bandit on all of the machines. For me this has become an extremely productive environment. I found the Whisker menu on one of my VMs and have installed the plugin everywhere.. Its allowed me to remove an extra panel by using Favorites on the front menu. So far everything is running well.