Hi,
yes, I wonder how many hosehold devices are "reliable" when they are powered with 300V instead of 230V.
Especially transformers and capacitors may not be reliable enough...
I tested the hall sensors, but was not satisfied with the precision. But to be true I did no research about new - better - devices for years now.
Therefore I either use shunt (up to several 10A RMS and some 100A pulse current) or ready to buy current transducers (LEM) up to 6000A RMS.
And yes, the shunts are more sensible to short circuit currents.. they may die, if not properly dimensioned (I^2t).
But the current transformers suffer from remaining offset current after an overcurrent pulse. To maintain DC accuracy they need to be calibrated from time to time.
Klaus