I'm working on a site where I need to deliver specific content to individual users. This extension allows me to do that easily, intuitively and in the most straightforward way imaginable. It really is the easiest extension I have ever used - and I've used a few.
There was a major problem during installation (caused by some third party softwear as it turned out, not UserExtranet) which meant that the compenent didn't show at all - and this was on Sunday evening! And my deadline was today (Tuesday)! I don't know if Popa at Beesto pulled an all nighter, but when I got to my desk on Monday morning, the problem was solved and the extension was good to go.
Super Extension - top class support.