The advantage is enough space for a Kindle Touch with Reading shell including charging cable and other extras is available. Often the Kindle reader cases for a longer transport are rather unsuitable, because they are open on the sides. For those EVA hard shell case are ideally suited.
The disadvantage of this casing has been mentioned several times: It stinks terribly burnt and chemically after EVA material ("ethylene"). It not only smelled, my eyes burned slightly from the smell! Normally EVA material is released until it no longer smells and before it is packed in a film, this product obviously not ...
Even Febreze and airing one day is not helping. However, EVA is washable / water repellent and I have the envelope simply plugged into the washing machine. Thus, the odor was eliminated and the shell remained completely undamaged.
I bought this cover for the very practical lashing and adequate size, mentioned in the product description tiny Brillenputztuch was also included. Two Star deduction for the unnecessary expense for odor removal and the truly extreme odor.