I'm disappointed that the reviewer doesn't mention the widespread issues with the docking port on the E74xx series. The Dell support forums are overflowing with endless threads trying and failing to fix flickering screens, black screens, disabled rear ports, etc.
The selling point of this series would be that it is one of the thinnest and lightest laptops with a full docking port. If said docking port doesn't actually function, then it is just a random ultrabook of mediocre size and weight with a reasonably good keyboard.
(BTW, the same goes for the XPS series, where the USB-C/Thunderbolt-3 port quite simply doesn't work with the current docking stations and port extenders. But TB 3 is a brand new technology, so there is still hope that it will get better as it matures. On the E74 series most of the problems have been there for several model generations, and remain unsolved in the latest E7470 model.)