This product works. It does what it purports to do and it does it with seamless integration into FCP 1.2.5 and FCP 2.0. The most useful elements of these effects derive from the additional parameters that they provide when compared to the adjustment possibilities of comparable FCP filters. The Softwipe transition is much more useful than FCP's Gradient Wipe and accomplishes as a transition much of which Pixelan's SpiceMaster accomplishes in its more awkward filter implementaton. The color correction capabilities that the White Balance filter accomplishes alone make the package a worthy tool for FCP editors.
Documentation is weak.
It consists of several HTML-based tutorials with a link to the CGM web site. The English reads a tad German, but a little clean-up by an editor would resolve some awkward sentence structure and conform the language to more English style. The price point might be a little high for many users. On the other hand, the developer is one of the only, if not the only, individual writing commercial packages with FXBuilder. That alone deserves some consideration.