This is a niche instrument for sure. The YouTube video shows what the instrument is and some raw sounds from it. This device was often used in live performances as a way to play some bass notes with your feet. We sampled them because we couldn't find any samples online and needed them for our Lamb Lies down on Midi project.
You will get nothing fancy from Progressive Sound (No fancy GUIs, No Processing or FX) only pure high quality samples that you can sculpt into whatever you need for your projects that sit wonderfully in your mix. Of course, none of the KONTAKT parameters are protected and you can play and add your own touches to the Kontakt programs (add effects, change the ADSR, create custom COMBIs for LIVE performance, etc.).
You won't be disappointed in purchasing this wonderful RMI Collection for your project work (home, professional or live).