Compared with professional follow focus units just a tenth of the price. For the ambitious amateur sufficient. The decisive factors are the smooth running without jerking, a not too hard sprocket for lens and the correct distance. The material thickness the boom to the quick release could be made more stable. The brakes are a good thing if you want to go it alone without assistance "blind" a manually predetermined Rack Focus. Same as Follow Focus by Tarion. The device is relatively bulky and heavy, but run some other (even cheaper) brands ruckig and have too much play. Clear recommendation - who thinks it will need to.
