need help chosing an alarm

[copen123]

i just purchased my first 2004 infiniti g35 coupe...i have posted on other forums as well asking advice on good alarm systems to protect my new investment...i went on google and youtube and i found this alarm that looks very amazing....i don't know if this is real or fake...does anyone else have this alarm on their car....i need to know if it is reliable...where can i have it installed cause it looks very difficult to install...here is the video of the alarm i am talking about...please advise...
http://www.youtube.com/watch?v=V73QqmkIivk

[joe603]

I'd get a professional shop to install...honestly, you're better off with lowjack.