Bought this to replace an old (23 years) Generac. Very easy to assemble, fired up right away. Ran it only for 5 minutes, then shut it down. 2 months later we had a week long power outage, ran it every day 12+ hours a day, no issues. Have had intermittent outages since, very reliable so far. We run it through a manual transfer switch to the house panel, runs the entire house but we don't use the electric oven or dryer.
I am very pleased with the ease of use and lay out of instruments and controls. The remote electric start was a real plus. Assembly was easy. Seems to have enough power for emergencies. We sometimes have several days without electricity due to storms or ice.