I have run two 2000i in parallel and I have run a 3000i Handi with the same results. Will run the AC, microwave if power is reduced to 80%, but the units struggle at 5000 ft. If running the AC with either combo watching TV and the AC restarted, it would shut the TV off until the AC was running. I always had the refrigerator running off the generator. I now run a Champion Dual Fuel 5500 noisy genset when I need AC. I can run whatever I want with that setup. Good thing I am out in the middle of nowhere.
Side note: One 2000i would run the microwave in a smaller trailer I had, but when I went into the larger trailer - it couldn't do it. Bigger wattage microwave.