In this video the Surface survived more than 2 hours in a freezer.
Then it was used to cook an egg for more than one hour at 250 F.
And again, it survived this test. Unfortunately it got finally killed by a glass of wine on top of it. Even after it's dead the tortures did not end, it was used as skateboard and thrown few times against the cement floor.
The glass broke when it felt into it's corner. A test that almost nobody passes.
No doubts about it, the Surface is a well made Tablet.