hey smokepolehall, i just bought one of those powermax 4400/3500 gens. on 10/12/07, should arrive by 10/19/07 ,will keep you posted on performance.i did alot of comparing ,this gen. had alot of options the others did not ( rv grade, pretty quiet 69decibels, rv switch ,240volt twistlock ,accesories ) i questioned the small size 23x17x17 but good things come in small packages.