Just picked up the iGen4500, as most of the others are sketchy on being able to run the A/C. Seems like a nice generator and not too loud or drony. I put oil and gas in it and press the start button and it fired right up. One item that tickles my OCD is that almost all the Phillip's head screws are strips. Either the company needs to use better screws or turn down the torque on their drivers.
The i4500 powers our camper and other small appliances when commercial power is not avaiable. Its telescoping handle and wheels makes it easy to maneuver during set up, and remote electric start make ease a use great. The 3 gallon gas tank is an advantage over similar inverters with small tanks.