What do you think about Intelli Jacks?

[Tikitim]

I'm seriously thinking about getting the Intelli Jack system for the new 5er. What do you think about the system? Being new to pulling a 5er, the hookup will be different, as in setting the pin height every time I have to hook up to the trailer. I've been told that this is a PTA and the Intelli Jacks will fix this. They are priced fairly well at Amazon, so I'm wondering what you think? Check them out here.
http://www.youtube.com/watch?v=LKiJ0wbMCLI&feature=player_embedded#at=54

[Flyguy]

It all looks good and easy on the video. I have questions though: 1) what if the site is so unlevel that you reach the maximum extension of the jacks and it still cannot reach level? 2) I don't have power jacks (except for the landing gear) so this would be an expensive add-on for me. 3) Where would all the wiring go in a retrofit situation? The video doesn’t address those questions.