After using Waninkoko's firmware updater, I can safely say that it is not worth update for several reasons. 1. You WILL lose ALL brick protection and preloader will corrupt your Wii. 2. The update will delete game wads you have not purchased, so you will need to reinstall them. 3. The SD booter requires space on your nand and it is nothing special if you already have the wad manager. So all in all, the only reason people should update, is if you absolutely do not want to uninstall and reinstall wads through the wad manager, want to be able to use an SDHC in the system menu, and do not care about possible bricking.