???? about these new 13" lift 2600 air bags ????

whats up every one!!!! first time post but anyway i have a ???? on these new 13" lift 2600 air bags???? i just ordered these bags and was wondering does any one on here have or know some one who has these on their ride and if so r they worth using or not???? heres the link to the page. i figured what the h*** for the price ill try them. what do u think???????????http://airgasmkustomz.com/mcart/index.cgi?code=3&cat=19