I have a 99 E300TD, 06 CL55 AMG, and my dad has an 06 SL500 that'll probably eventually come to me. Anywho, which of the Star systems from China do you guys like for advanced code reading (my OBDII reader I can buy licenses for to do services with doesn't even offer a Mercedes license), Rodeo tests for when I want to service my own ABC suspension, and various other features so I can service my own cars?