graphene

I was looking around of Hobby King for a few new 2200 45-90 C 3S batteries for my quad as I only have two at the moment and they performed nicely. I came across Turnigy Graphene batteries 2200 mah. Has anyone had the chance to try some of these batteries out yet? Do you guys think they are worth...

I assume some of you fine folks have seen them on the hobbyking daily, instagram, facebook, vision-from-above. Anyway, I have been flying the 1500 4s multistar and although they are good, they are damn heavy on my already heavy MXP230 so I went ahead and ordered 3 of the 1300 4s Graphene...