nice looking machines . would all depend on how they run. i have not tried this style of rotary with the spring, abar lobe drive type but would all depend on how it runs lol. im more into just a nice streamline clean machine that i can run every day not worries if i drop it or my tattoo acide eats off some of the paint or tarnish and green the brass just a good solid machine that i can run every day and beat the shit out of lol.