This program is very good, BUT have a BIG problem:
The installer download a content and install, and keep doing this at when finish.
This isn't very good, because, if you lose internet signal (like a ISP problem) you cannot download the rest of the contents and can be a instead bricked Wii. This make the installer not so SAFE.
For example, Waninkoko installer, first download all the contents and after that, start to install.
Hope that when a future 4.3 version appears, the install will be like i mentioned before.