Got the headphones after a long wait and at least 4 emails - 5 weeks before they were sent
Anyways they arrived. No duty was paid

which was a good starting point.
They are very well made, a nice weight and leather in the cups and over the head bits. They fit nice and snuggly and the PS4 unit clucks in firmly with a reassuring click. The unit that it slots into is very well made.
They sound great

The toggle off switch is very useful if you want a quick break
Problems - they are hot and, after a bit of wear (2+ hours) they aren’t as comfortable as the WS5s. They start to hurt the ears.
So, to summarise, the supplier is slow and pretty unresponsive. The headphones are sturdy, well made and sound good but are not that comfortable for extended wear. If anything did go wrong you’d need to return to the US or get fixed locally.
I like them, but wouldn’t urge you to rush out and get a pair
