The structure is very simple - in a few minutes you're done. Only women with long fingernails should be a little careful in building. Only the upper handle requires a little more effort, I in no way a negative review, since it is so at least ensures that the handle also there remains where it belongs.
The size is quite adequate for a normal adult cat. And also in the car and rampaging meowing cat is in it safely housed (own experience). The door is very stable and fits well into the provided clips, that here there is no danger that the door slipping o. Ä.
A nice feature for timid cats also offers the removable lid. For the cat sit in her box while being examined.
Even the look of the box I find most appealing. It acts processed by no means cheap or bad.
All in all a super transport case, which I would recommend, especially for small animals and normal sized cats. The value for money is great, because there are more expensive boxes that are not as stable.
Addendum March 2015: The box has now been used several times (since last October) for unscheduled transports to the vet. And I can only say: I'm still excited. It can be seen no signs of use, nothing is broken, etc. Although the cat is not thrilled to have in the box. What better for this price you do not get.