Change the plugs or use a converter ?

I have got 2 PC Shunyata Taipan with US plugs when I live in Switzerland.
I am wondering what is the best solution :
change the plug or use a converter ?

I am wondering if a converter is a way to lose efficiency, quality, as it's add another device.

But if I ask the question, it's because Shunyata says that its Venom connectors "ensure superior contact integrity, lower junction impedance and the long-term performance reliability of PowerSnakes products".
"Shunyata Research is the sole power-line company that treats the contacts of its power cords with an expensive three phase co-plating process".

Thanks for the insights.