Admittedly, I have been told by several people that the new interface worked very nicely on tablets. That's what it was made for, after all.
On desktops without a touch screen, I found it annoying and still do. Of course, one can still get work done using the new interface, but I still don't understand how they got the crazy idea of throwing out the start menu.
It worked well on my Windows tablets (Surface Pro, Surface Pro 3, Dell Venue 8 Pro).
It worked well on my gaming PC, my dev workstation and my hyper-v server.