I have owned this for more than 5 years and use either alone or in conjunction with a vacuum record cleaning machine. Other reviews recommend against using the fluid because of a build up of dust and residue on the stylus, they are missing the point.....THIS IS BECAUSE IT IS DOING WHAT IT IS MEANT TO DO!
Let me explain....
I have found that even fully vacuum cleaning an LP does not remove static induced dust in the grooves. Another example of this is when you handle that white polystyrene packaging which breaks into tiny balls. It is very difficult to remove it from your hands because static just moves it around but try as you might, it sticks firm.
The same applies to a statically charged vinyl LP. Unless you completely remove the +/- charges from the vinyl, minute dust and fluff particles will not come out from the grooves and in addition, as soon as you wipe or clean the surface, airborne dust is immediately attracted back.
The Disco Antistat fluid is superb at killing vinyl static (an extremely expensive +/- lab ioniser achieves the same result) and therefore when you first play a cleaned record, the white residue is the stylus finally pulling all the minute gunk out of the groove. Believe me, brush the stylus clean, play that record a couple of times and the dust and fluff will be gone.
I often use this device/fluid AFTER a thorough cleaning with a RCM and many second hand records come back to fantastic condition, static free. Just scratches left, now NOTHING cleans those. !