Probably just like the original

I have allowed myself to be convinced by the good reviews here, to buy not the original, but this sun visor. What should be different from the Canon - the shop I've looked at one of Hama (20), and that was just a piece of plastic.
The application is simple, and once placed laterally tightened, fits perfectly on the lens. When not in use they can be screw vice versa. The fact that it hooks or to go hard, I have not noticed anything, everything was okay.
On holiday in Ibiza we have then tried directly to the photos of Fuerteventura in March (both islands quite bright & blue sky and intense sunlight) these images now much better. So has helped - maybe we buy another filter to it.
Why you should spend on Canon sunshade under 30 (even plastic) will not open up to me ... Although I am only a layman in the field, but say yes here, the professionals that they do not necessarily justify the price find.