I had a hood in a kit that was in place filters ... It does not interest me and I think the throwing. For comparison fixing the screws provided no filter is not practical. The original uses the original fixing namely the grooves on the outside of the lens. It therefore prevents more put a polarizer or neutral for example. Another notable difference. The cheap filter is a plastic piece. Canon that is covered by a felt cover on the inside to minimize light reflections. The price is affordable.
