Very thin and discreet shell, good protection, but cap S5 inaccessible

I had already used a shell for my professional Ringke Iphone and this even after more than 2 years of use still holds good and is entirely satisfactory.
So I continued with this brand S5 for my son and satisfaction is still there.
For a more than respectable price, the shell fits together perfectly on the phone is very thin so do not feel and almost does not alter the shape of the phone ..
The handling of the S5 even improved because less slippery than the original cover.
Slight extra thickness at the edges to prevent the screen face down position button.
Comes with more screen protector to stick, medium quality course (I think it will not stay long) but it's a little nicer for the price.
Nevertheless, I removed one star for one slight problem: access to keys and connectors is almost perfect with hollow spaces fairly comfortable except for the USB connector. It becomes very difficult if not impossible to remove the protective cap without good nails and there is a little bad studied. (I think it must be the same for all S5 hulls, this specific cap to the S5 is a little pest).