There's a lot packed into the 9000VPN's bursting-at-the-seams flash memory, but some features are better implemented than others. The FTP server , Print server and Content Filtering are strong points in my mind, although users may find the 20 keywords for the Filtering to not be sufficient.
The weaker features include the VPN functions, which will be suitable primarily for folks who buy two 9000VPNs to set up a router-to-router link and who don't plan to push much traffic through the IPsec tunnel. I also think that buyers who don't realize that the Bandwidth Management features apply to outbound (upload) traffic only, may be disappointed in their purchase.
With its relatively high price and limited availability (at least in the U.S.), the MU-9000VPN and its WMU-9000VPN wireless sibling will be appealing to a relatively limited group of purchasers who "just gotta have" their unique combination of features. For me, however, the quest for the right SOHO router with built-in bandwidth management continues.