Amazon is safe when it comes to importing stuff. You can do so without any worries, considering the seller is also of good rating.
I think Microsoft provides international warranty, as far as I've seen their customer support for other devices (xbox)
I could find this link which validate the same: Buy in USA, live in EU, how does warranty work?
If the device is officially available here, you'll get the support under warranty. However it would be best to check with the customer support itself, before going ahead.