In terms of protecting the cards is impeccable, the plastic is rigid and does not crack under normal use: I happened to drop this top player on the pitch d a sidewalk, and only a tiny piece of plastic broke; considering the price, I expected much worse!
However, the hinges of the two covers are very thin and made of the same plastic, and in this case, be careful there because they easily dislodged, so it should not be difficult to accidentally break! Even if mine does not suffer from this defect despite several falls, I invite to handle it with care. The same also applies to small pins to keep them closed hoods (clipped): there is a good chance they quickly take the game.
Otherwise, for the rest, nothing wrong: for the price, he always read all my SD cards and smaller variants, HC or not. All in a compact and convenient to use (I think including the cap that simply pass through the wrist strap provided to never lose). As for performance, this is the fastest I have. As is often said, there is necessarily better, but it's more expensive ...
Moral: take care of it, and it will make you great service.
Mr. Kingston: When will a version with metal hoods, much stronger?
