I have a Honda 3000ie. Not exactly portable, I keep it chained up in my truck for work. What sold me was electric start. It also has eco throttle. You push a button and the rpm's drop really low. It will only rev up enough to run whatever you need. I don't think the smaller ones offer elec start. You can't go wrong with the Honda. If I get a smaller one, it will be a Honda. If I didn't need it for work, and only used it occasionaly, I may opt for the cheaper knock off.