Both my CS530 and 346NE were purchased new by me. I can compare them all day long if i want. The CS530 has plastics that are better (thicker), the on-off toggle switch is metal and much better, the automotive style air filter does a great job and is much less fragile, the air filter securely and evenly seats with a center mounted screw. The swrench is even better. The 346 spools up faster though but both can be stopped dead in their tracks with a heavy hand. The 530 wont cost ya an extra clutch cover either because it comes orange already!:msp_w00t: Maybe the 346 ports easier because of its design, both cut wood straight from the box in stock form.