As soon as I received the generator, I took it home, read the instructions, filled it with oil and fuel and started it right up...no problems. The next weekend we had a planned power outage for a pole replacement. I ran the generator for 8 hr. straight and it worked perfectly...kept our refrigerator, top-load freezer, and microwave on throughout the day. Most importantly, the big screen TV and electric lounge chair never missed a beat!!! It is a great generator.