Apart from the fact that I found beautiful the shell of my old Kindle (in this the unit was just reingeschoben), because there was no comic, laterally protruding "nose", it indicates that here nothing to complain about. They fit perfectly, nothing wobbles, the installation was easy. Only the set-up function that I use quite often when I'm sitting at the table (and because of I bought the shell also) was not immediately self-explanatory to me. But the basis of the figures I could then piece together myself and it works flawlessly. The back strap contrast, I use did not, but my hands are probably too strong (I hear a "thick" ?!). But even without the device can be, at least for my hand size hold easily in one hand, where it is convenient that allows the two halves of the shell together fix, so nothing rumbaumelt. All in all a purchase, I do not regret, and at a fair price. PS: of bad smells out of the box I can not say anything ...