Just had to use this for the first time. My power went out and I hadn't even put the oil in yet. Took one minute to put the oil in and connect the battery. Took one more minute to hook up the propane (with the supplied hose) and I was up and running in less than 5 minutes. Ran all the items I needed in my house which included 3 freezers, 2 refrigerators, hot water heater, all the lights, and my AC unit. From what I could tell I had more than enough power.
I bought this generator to power house during an outage. I have not run gasoline through it yet, only propane. I tested it with a freezer, refrigerator/freezer, furnace, and a few indoor lights. Worked out really well. Ready for a possible outage. Happy with purchase.