This is just going by what other posters have said... I really don't mean to rain on your purchase and I'm sure you will get much enjoyment from it.
The AGA-W has some improvements such as the o-ringed top cap and ability to line up the air hole properly, and the stainless steel post.... but the problem is that the tank is threaded and therefore you cannot replace the tank with glass. Also, the center pin is not threaded and uses a spring to hold it in place. Other posters said the AGA-W is limited release and will not be coming out in large numbers, and apparently not to North America at all.
I want to order something that looks more like a cobra or a zap... not sure I want to spend those prices though. The AGA-W is supposed to be really good for vapour and flavour, don't get me wrong, and I'm sure you will enjoy it. I was ready to order from the safer//cigs site as well (if that is where you got yours Jables). But people are questioning its design with the spring and the threaded tank. Then I heard that is only a matter of weeks and the AGA-T2 will be released, and I'm hoping there will be a co-op on it (the co-op threads have a lot of interest).