After setting up I ran it with no load for 20 minutes. Seemed ok. The next day I ran it with a lite constant load, engine would constantly rev up and down. After 2 hours I shut it off. The next day started it up and within seconds (with no power plugged into it) it overloaded and shut down. Awaiting reply from customer service.
Purchased this after our Yamaha generator died after many years of heavy use. Wanted something with a little more power than our previous 1000W, and this 1800W constant/2200W unit is great. Hoping it lasts a long time, too!