Just found this on fishpond, here is the same cooker from amazon it has mostly good reviews but also has a few bad ones so take them for what their worth - http://www.amazon.com/Presto-6-Quart-Aluminum-Pressure-Cooke…
It is delivered from the US (I think most things on fishpond are?) though I dont really understand how they can afford to even sell it for this price it seems like it could be a mistake, or do they only make a couple of dollars each? I dont know.. I'm just hoping its just someone cleaning out old/dead stock or similar.
Anyway yes it is aluminum so get a better stainless 'newer design' one if your going to be using it often or cooking acidic foods like tomatoes (aluminum can leach and cause metallic taste into acidic foods).
Id be getting a better one if I knew I was going to cook with it often and could justify the cost, there's a nice looking Stainless Dessini brand one on feebay for $80 delivered though couldn't go past this one for $13.50, for how often I will use it, it looks perfect, I just hope I dont get a dud, or for that matter a refund due to price error.
Hope someone finds it useful.
I just also found the instruction manual online if anyone wants to read it - http://www.gopresto.com/downloads/instructions/01264.pdf
Thanks! bought 1 since I've not use pressure cooker before and would like to try it out.