Mine sounds like a miniature 70’s snowmobile and has almost no vibration. When idling it just sits there running. No bouncing around. Cuts decent enough. I have a 20” bar on mine but I saw one with a 24”. The ignition components are unobtainable so when they die they’re pretty much sold on eBay for parts. I found a forum with murmurings that there was possibly a way to rig a battery powered ignition module to them but never saw a final result. Posts were probably 10 years old. My research showed that Echo had planned to make 3 2 cylinder models and after the 610 didn’t really take off they abandoned the project.