Very fit - fulfills the purpose

Pass Accuracy
This hard case is a perfect fit and the attachment is very simple. Only the removal of the lower part is connected to some fumbling which I think is an advantage but, showing that the case really tight. Unintentionally still none of the two parts has achieved.

Material
The material is known for its strength quite "resistant to twisting" and stabilizes the already very robust MacBook addition (just the display that is quite thin anyway).
The surface of the inside of the two parts (the rest quasi on aluminum) is made of smooth plastic.
The outsides of the parts (what you touch) appears to be roughened slightly and feels "soft" on. This provides in my opinion a much better grip than the bare aluminum or smooth plastic.
You can see the parts at first glance not to, but it is transparent. That is, the apple seems behind by :-)

Others
The Hard Case lower part has four own feet in my opinion for better grip ensure than the Macbook's own feet. That I regard as a plus point.

Conclusion
Overall a very good cover for little money.