Many complex Unix programs have dozens or hundreds of different screens, and you can customize each one. Catalyst can perform a regular expression scan on each page it brings up, adding functions according to the rules you specify. The Catalyst administrator can define rules both globally and conditionally, using a reasonable syntax. Finally, Catalyst includes OLE integration hooks. This isn't immediately useful, but provides an interesting way to extend legacy applications.
Documentation is quite complete.
I found occasional minor glitches, but nothing that held me back for more than 30 seconds. The documentation includes a decent index and full troubleshooting guide. One of the more interesting pieces of documentation is a short section on optimizing. By arming the Catalyst administrator with information about operations overhead and efficiency, MultiView makes it easier to balance complexity against speed. In my tests, MultiView Catalyst just worked.