Nice package/packaging, very well laid out. I also have a 6kW Onan, which is physically larger. Overall, happy with product, Westinghouse gets about 4.8 Stars on this unit. Minor details however;
1. Westinghouse kindly provided 1quart of oil, but machine capacity is 1.16 quarts. It IS documented in the manual (Glad I read it, usually I don't....). Didn't want to run without "full" complement of oil, so I topped the machine off with some extra oil that I already had. Hard for anyone to ship "1.16 Quarts" of oil. No dings for Westinghouse on this, just be aware of it.
2. Out of the box, the threads were buggered up on one of the welded on 10mm nuts where the legs/feet attach to the machine. Chased them with one of the bolts on the backside of the nut, didn't have a 10mm tap. Minor thing.
3. Electric/Automatic choke mechanism was gritty/tight on first attempt to start. Figured out lack of start quickly. Ceased starting attempts, manually moved the manual choke mechanism back and forth a bunch of times, loosening it up. Also sprayed a small amount of oil w/Teflon in it on the mechanism. Probably the biggest ding for Westinghouse. A lot of people wouldn't know what was happening/why it wasn't starting and just send it back. I may ask Westinghouse for a replacement auto choke mechanism. Looks like an easy changeout.
4. Mechanical fuel/gasoline valve is a bit odd. In my past experience, when the shutoff lever is perpendicular to the direction of flow in the fuel line, the valve is closed. Just the opposite here, when it's perpendicular, the valve is open. No biggie, you just have to have good lighting, your glasses on and you can read the imprint on the fuel valve.
Anyway, I'm quite happy with the machine overall. Lots of nice features, one of my faves is the battery charger and the fact that they included it with the machine. Lots of great features packed into this unit.
Other than the relatively small details above, I give it a 4.8 out of 5 Stars.
Documentation is very good. Unit came out of the box in great shape. Comes with everything you need to hook up a propane tank with the exception of a 3/4"/19mm wrench. Easy to start.
Powers all the the essentials in my house. I bought this following the worst snowstorm in decades when power went out for 30,000+ homes in Nevada County, Ca. Wish I would have had it a month before. Would have saved me waiting for hours in line at the gas station.