It works OK too, warms up quickly, doesn't stink that place out, has a handy digital temperature gauge and is just really convenient. It has a couple of optional extras as well, like a battery pack and car adapter which is handy should you ever be stuck in a field in the middle of nowhere.
My personal favourite thing about the O2 is that it has a little belt hook on it so you can hang it off your robes and pretend it's a light saber. I like to think that Qui Gon Jinn would approve of a light saber that dispensed vaporised goodies, he looks that type.
On the downside, the O2 looks like some form of butt-pluggy enema tool from outer space. It is a bit of a git to load, especially in the dark or if you have cack-hands, it feels very plasticy (though is apparently made of a nylon blend), and the power cord could do with being a bit longer but it is still nice to puff on whilst idly watching Jeremy Kyle at 2 o'clock in the morning.
