Like the Spin Clean, only better. The Knosti uses goat hair brushes that really get into the grooves, instead of pads that don't get much deeper than the surface of the record.
Choose the kit with fluid, or without if you'd like to use your own recipe. The Tri-Art Audio fluid works very well with this kit.
The version (Gen II) with crank handles includes fluid.
Check out this very good video on YouTube: https://youtu.be/VPFgcdRc6x0