I'm only looking at OpenScape Business, the other systems might be more convoluted but the run through I have seen of OSB looked great. Everything was in one place, vs ipo where you need to go into VM Pro app, One X Portal web interface, IPO Manager. Updates are handled in the system, it downloads the firmware/software and runs the install for you, no seeking out downloads for your correct version, etc. Client side applications are stored on the unit so you can easily distribute applications to users, again no more hunting avaya's portal for apps. The documentation has been great so far because Germans be Germans.