You might focus very fast , mechanism must sound very smooth , winding must be very smooth , no forcing , no vibration. Look in to your prints with a eye for Da Vinci painting . You might see some extraordinary colors , degrades , very long degrades and some details must be extreme.
Dont use it as you use a japanese junk. Force it , load 200 ASA film and under classical hot bulb lights , shoot some portraits , hands , muscles and skin details and 3D relief will knock you off. Go dark places and shoot people. Produce bw very thin negatives , you will be suprised with film noir pictures.
Buy 1950s photo almanacs and see what they did with these lenses.