Well, there is always a certain risk when you go flashing custom firmware....whether it be on a wii, a psp, a phone, or your tablet. It sounds like doing this sort of thing is relatively new for you, and you are doing the right thing by being hesitant. Probably the WORST thing anyone can do is dive headfirst into it without doing their full research. This would be the same person that fails to thoroughly read all the instructions (and the reviews), and ends up bricking their system. Now....this person rants on the forums about their problem and expects the gurus on here to fix it for them.
In actuality, your risk is very low. Your most helpful tool here will be your own common sense. Read all instructions several times through until you completely understand what you will be doing. If you are confused about something, ask questions before doing it. Avoid the 'cross your fingers and wing it' scenario.
Don't be scared, just be careful. This community seems to have a lot of knowledge to share. Good luck, and let us know how you did!
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