I picked one up yesterday evening from a mate that's quitting the sport. My first impressions of the pack are very good! (I normally avoid any HK gear)
The pack is very comfy, and has plenty of grip to stop it sliding around, I was skeptical that the strapless idea would work but I have to say I've tested this pack out with filled pods and I haven't been able to shake any lose. The adjustability of the pod retainers strength is a very good feature I think.
From playing around with it I think it's much easier for filling whilst holding a lane as you don't have to pull a strap down to release a pod, you just pull the pod straight out.
It's a nice pack but I feel £70 is steep for pod packs.
I'll update this post once I've had some game time with this pack next weekend.