Inma, you're wrong about the 2000i honda. It is designed to run 2 in tandem for higher output thru the 30 amp twistlock connector.
The issue with one 2000 is it only handles 13 amps continious. False advertising. I would like a gen as small & quiet as the honda but rated at 20 amps continious. I have many loads that are 8 to 10 amps, i can only run one at a time