Having lived in Europe twice (first time Netherlands for 4 years, second time in Belgium for 3 years), I can attest to the difference that 50 cycle current has on US appliances. Anything with a US electric motor in it will usually cause a problem (60 cycles). The step-down transformers that you can buy (and there are huge differences in transformers as well), do NOTHING to accommodate the difference in cycles...only volts. It could be very funky going from one appliance to another. The washer would work, the dishwasher wouldn't. Then there was the fun of a US dryer which used 220 for the heating element, but 110V for the motor and timer unit.....because our 220 and their 220 are most assuredly different. If you were using one of the inverter generators (e.g., Honda EU type), I'll be your problems would be solved.
"SilverLeaf II" 2015 30' Classic
2014 RAM 2500 Laramie 4x4 CC w/6.7L Cummins
WBCCI # 3430-Unit 21