There is a review of the Giant Escape Mini Zero at road.cc.
What strikes me is that the image of the small wheeled bicycle is changing. Increasingly it is being seen as something that can be fast.
As a Moulton aficionado I can only welcome this.
The Giant Escape Mini Zero does look a bit like it might break in the middle. Maybe there is something special inside that roughly horizontal tube.
Personally I think that high quality low stiction suspension allied to an ultra-rigid frame à la Moulton is essential to a good design, but bicycles like the Giant Escape Mini Zero do help in changing perceptions.