Nope, brand new with 3 year warranty, that's why it's a crazy deal. The only "catch" is, which I've mentioned above already, is that you have to buy as small/medium business (just fill in a random company name) so you lose consumer rights (DSR, SOGA etc).
There's currently a 20% off offer from the company themselves (lasts until 23rd Nov), then you add a 10% off coupon (lasts until 26th Nov) which brings it to £201.72. Then if you buy through a cashback site and presuming they track it, it's another 10% back so hopefully that means you end up paying about £186. Even if the cashback doesn't work or you don't use it, £201 for this monitor is madness.