Currently there is some mix up with the PC's listed.
It seems they are updating the range but haven't fully updated the descriptions, after another thread was posted earlier I ordered one and contacted the web chat, The orders have now been updated and from the web chat I was informed the Items title is correct and the description needs updating.
As such, assuming the price stays the same this is an amazing deal for what it has in it.
GTX 1070 founders £400
16GB Ram £80
HDD + SSD £80
Total of £775 before you even consider throwing in a PSU, card reader, case, motherboard and Windows 10. At £999 its a stunning pre built price. (TBH I think even self builds would struggle to meet this price)
For added peace of mind, I would get confirmation from online web support before ordering and get a transcript emailed.