The main reason was because it requires NO drilling of your front mudguard so could be removed and the bike back to standard, also I thought the design looked more like something BMW would design.
It came with full fitting instructions but was really straight forward and a good fit.
Clipping on with three small 'hooks'. It even used torx screws like BMW do.
Excellent bit of kit, fit and forget. Hopefully will keep the front a bit cleaner!