I'm a big fan of my Wingnuts (2.5 and 3.0) but I'm also a bag whore

I see these are pretty drastically reduced on Merlin Cycles. They got a good write up in MBR and in principle the low-slung-load-bearing set up is similar to the Wingnut's and they're also lighter than the old style Camelbak I've got. Even if it is terrible the bladder looks like it'll fit a Wingnut and they're probably worth 50% of the price.

Just wondered if anyone has any experience of them?

I have the larger Octane model from a few years ago, which wasn't truely a cycling model, but was the first with the low slung and wide hip belt, fitting more like a wingnut and the charge and Volt.
I like it a lot, a whole lot more than any of my previous Camelbaks (and I have had loads).
I had a try of a wingnut and I have to say I was slightly more impressed with it, but I had a lot less in it. Now I don't ride with anything on my back and I have not missed it in the slightest.