The observations I made about Xobni on my blog post were reflective of a) having formerly used Outlook for many years in large corporate settings b) my assessment of the functional usefulness of the add-in to me. I'm happy to hear about your personal experiences of the add-in in order to better understand the killer features/purposes I've apparently missed and the value it has given you.
Many of the things he said he never did in Outlook were things I did when I used Outlook four dozen times a day. He could have saved time by writing "I am not in the target audience" and been done with it.