They each were well-written and easily understood. After downloading the set from the Ultrafunk website, installation was effortless. It took a matter of seconds and was instantly useable. The Sonitus installation process does not enter the Windows system files, thus allowing you to place the effects programs wherever you want. Manuals in Windows Help format are included for each plug-in.
Manuals are also available in online HTML format.
Static presets are included for each plug-in to provide useful starting points for your own presets. File placement is user-specified. I found each to be quite intuitive. Input changes are made with keyboard entries, horizontal sliders or moving selected markers on the graphical window. In each case, a numerical window reflects the changes made.