I'm installing mine this saturday. I just want to know how they are holding up. Any problems? Are they reliable? Is there a difference in the sound?

 

I don't have one, but the reliability issues with the power rod can be found in the 5g forum.

But as far as 4g specific problems, I don't think it has been long enough, but so far so good. The people that have steered clear, or wanted/have taken it off did not install it correctly.

But for furhter information, you'll have to ask the Father of The '00vi