Well, from everything I have read and researched it looks as thought leatherique is the best stuff out there.
It seems that BMWs are notorious for cracking leather with increased age, thus there is a vast amount of information on bimmerfourms.com. Heres a good thread to check out with some good info on the products used to soften leather.
http://www.bimmerforums.com/fo...ather
This stuff isnt cheap, like 3x the price of lexol, but if it works then its definitely worth it. My dad is going to be ordering some to redo the leather in his BMW and I am going to use it on the "cardbord hard" seats on my J. Ill let you know how it goes.