This!!! I had this exact model when it first came out, I had to return it to Microsoft 4 times and had 2 failed pens replaced under warranty. I had 2 touchscreen failures where part of the screen failed to register, total failure where it wouldn't turn on or do anything then a screen failure where the display would flicker on and off. One of the times I sent a faulty one back, I was sent another faulty one! It would typically take around 5-7 days where I'd have to send the old one off before a replacement arrived, however I realise now there's an option for them to send a replacement prior to receiving the faulty one.

In the end I had enough so sold it on ebay, then 2 months later got an email from Microsoft about a warranty claim again! New buyer clearly had issues. Replaced it with a Dell XPS 12 Convertible which has been faultless.

no, that is the older version.

They dispatch it to a UK warehouse, then that warehouse ships it to you.
Their terms & conditions state that they handle any customs and that the price you pay is final (no extra costs)
I bought a Sony Xperia XZs from there last week, it arrived in 6 days and said it was posted from Lancashire.. even though it originally came from HK.

Edit: Here ya go: 1.9. Import Tax