Curious and excited about, I love to discover new systems. I found the 6d6rpg.com
website, I read all I could. Now, I'm not so excited.
In short: he tried to reinvent the wheel, he obtained just another fancy way to roll dices. But I feel he missed the points he was trying to achieve. Also, I see he stayed too strict to "old" - too "crunchy" - details. Movements in squares, count of ammo for weapons, reload time etc. Simultaneously, I feel too little details is given for managing emotive challenges, beating others with intimidation, ruin the affairs of a rival, set a chase, simulate mass battles etc.
The characters have few "WOW!" aspects, something that makes me want to absolutely play THAT thing (special ability / mechanic / aspect) in game. Also, there are too many "The results are subjective" parts. A good system should give a firm, detailed, set of rules that should be used without fear by the Master. Good rules and honest principles are the way to play, not "this is left to the master/group decision".
I think I'll stay with Powered by the Apocalypse systems, + Savage Worlds if I need something crunchier + Cortex Plus if I need something in between (that is a very good system for the premises the author seems to have in 6d6 website).
However, I see the author is very honest with his "Living Document Promise", creative commons, etc. so, I wish him good luck and I hope he'll find a good niche of players that will enjoy his system.