The higher displacement of the Honda is helpful only if one needs to start a larger than normal fridge (a regular fridge can be easily started by the Yamaha), or a big microwave oven, or some other heavy machine. For our use, 1.6kW is a lot more than enough. Also, the surge power to 2kW only lasts a few minutes, what matters the most is the continuous power rating, which is the same for both the Honda and the Yamaha.