Does it's job!
You have to know that this cable or any other won't make miracles! Wii can't output 720p or 1080p! but it can put 480p on your LCD which is not worderful but it's better than the standart PAL format :)
I noticed a god improvement on the picture, and even a friend of mine noticed that without me telling him about the cable change!
I don't know if the difference to the offical cable but the image is really god and the cable seems to be high quality.
Note: used on 42" HDMI Ready LCD