I went with an "official Nintendo product" because, with electronics or accessories, I always go official to avoid any cheapness of quality.
With that said, I was very displeased with this product.
I find the cloth is very nice, cleans well, Very well as a matter of fact and the stylus is a nicer "big pen" form for those with larger hands or for those that don't like the small stylus.
However, when we get to the screen protector things quickly fall apart. Instructions are clear enough and it looks fairly easy. You quickly find that the screen protector is smaller than the screen itself so it's very improbable that you can get it to line up correctly. Then there's the issue of the protector not sticking right to the screen. In my experience, I managed to line everything up then, using the included flaps, I tried to remove the final layer of film and everything ended up coming off.
So the screen protector then got dust, hair, fingerprints, etc. and was made useless.
All in all, not a good kit for the price. If there was one, maybe two more screen protectors to use then I would recommend this but as is, I would avoid this.