This is a fantastic idea for a product, but feels flimsy, lightweight and poorly designed.
Although it work OK, and I won't complain about the food it produces, the razor sharp piece of metal that pinions the center of the vegetable, effectively cores whatever you are spiralling. This is fine for courgettes but for carrots, potatoes and anything else it's just wasteful and restricts the minimum diameter of the vegetables you can use. The vertical version of this product does not do this, I don't see why this one should.
Another restriction to the size of the vegetable is the rotating foot of the machine that holds the vegetables in place, the spikes are too widely spaced apart and simply will not hold narrower vegetables in place.
There's no need for the extra handle to slide the platform along, horizontal pressure as you turn the handle is enough, plus the machine isn't sturdy enough to stand up to much pressure.
The handle is set too low to the base of the moving platform, anyone with normal size hands is constantly rapping their knuckles against it.
It's a real shame as this is a brilliant way to prepare food. If I was to buy again I would get the cheapest version of the upright one available.
Someone should make a high quality stainless steel version that's properly thought through.