Sorry, I just have to push my post '"Citrix? Wheh!" Or?' on inmaxmind.com: http://inmaxmind.blogspot.se/2012/03/citrix-whew-or.html
Hopefully it explains why it's good and how it works. Not everyone knows how and why...
@onyangochris; more or less same basics, isn't it?
Keep Up with TechRepublic