I have one of the Champion 3500 generators. Bought it at TSC several years back. At that time it was $299 plus I got a $75 gift card back for TSC. I also have a Generac 5500 generator that I bought when that derecho went through back in 2012 I think. Both have been good generators and both have several hours on them. When the derecho went through, I ran that little Champion for 72 hours straight only shutting down about 15 minutes once a day to refuel. The Champion is much quieter and starts much easier than the Generac. Also the Champion is truly putting out 60 hz, the Generac is a little higher than that, not sure on the exact number but if you plug an analog clock into it, it will gain time. Obviously since it is smaller, the Champion uses less full. Both have been good, can't complain about either one. I'm guessing the Champion has about 200 hours and the Generac probably 30. I pull both of them out of the building every 2 or 3 months. Let them run with a light load on them (both poles) for 15 minutes or so. Neither have had any issues.