The Champion 2000 is a great little gen... and really quiet compared to most 2000 inverter gens that I have used. We have run it and a Generac ix2000 side by side and the Champion is substantially quieter. Both gens run about the same loads, I actually think the Champion does a better job than the Generac even though the Generac boasts a higher peak power.
My opinion (for what it's worth)..... Champion makes a great product and as long as you are not expecting to run your A/C with this gen you can't go wrong.
We used this Gen to power 2 rv's for 2 weeks last summer for basic charging of the batteries while occasionally using the coffee maker or Microwave (not together of course) with no issues. Sitting directly behind the trailer it was impressively quiet in our site, we could carry on a normal conversation sitting 10ft away from it. The people camped in the site behind us claimed that they could not hear it at all....