I'm on it but I found it clunky and unintuitive and haven't really developed my profile on it. I was a bit irked at the somewhat amateur-night feel of it - epitomised by there being duplicate or more pages for the same department or centre which individuals had input in slightly different forms. Also, if people are looking for me in particular, I have a personal website.

Maybe there is more to it than that - I'd be interested to hear other views.