I'm not so sure about the quick access putter pocket. I think it's a cool look, but I'm a little concerned about how it holds up against rain. The exterior bag material is weather proof and will keep water out, but why is the putter pocket opening velcro and why is the opening facing up? Assuming rain is flowing downward from the top of the bag, the way the pocket is orientated looks like water could and would start collecting inside that pocket even if it's closed.
I think the velcro is oriented the way it is because, if it was the other way, the 95% of the rounds you play NOT in the rain you'd have to constantly be lifting it up (possibly un-velcroing it) EVERY time you wanted to grab your disc. Since many will put putters there, that's every hole.
I think that the fact that an umbrella fits inside the side pocket and can protect you and your bag is a big part of their "waterproofing" plan for the bag.