As bcp people my key upper shell of my car was damaged (one of the buttons had soldered), I first bought a different model than the one (with a screw) that I tinkered to replace the upper shell but after a few months she began to no longer clipped ... so I went on this model without screws and I do not regret my purchase! Indeed, it fits perfectly without hacking it must still some insist the clip (with a cloth around the hull is pressed lightly with pliers and it's good), but it does not undo !!!
Compared with the original (and the one I had before) the buttons are a bit hard to press but I think it will soften with time.
(I did not use the lower part where the key should be, I have kept the original one so no opinion on it)