Is This Mini Electric Airbrush and Compressor Set actually usable? Yes it is! I tested the battery life and on lowest pressure setting it ran for almost 50 minutes which was very suprising. It did not have any issues whatsoever with Vallejo and Meeden airbrush paints and i am sure that it would do just as fine with any paint that you throw at it (Properly diluted of course). Perfect to lay down primers, paints or varnishes for your minis or figurines or any other scenario like nails, automotive