I've got one and really like it. As with all this stuff, it's good at what it's good at, by which I mean it is designed as a quick boil device. It does that very well indeed. I've got the dual/duo(?) model. I have used it with the mini Trangia pan, and it fits in there very well, along with half a pan scourer which stops any banging around. You might be surprised at how little meths you need to get a pan full of water boiling too (I use one of the little plastic flasks from the Swedish Army Trangia set , and that's perfect for a weekend away doing boiling type meals). The windshield is like a thick foil or thin tin - very flexible aand light, and is ideal for the job. Oh, and that fits in the same pan too!
I would certainly recommend it. I got mine from Backpacking Light (
http://www.backpackinglight.co.uk/product230.asp?PageID=99), who I think are a first rate supplier. NB I'm just a satisfied customer; no other connection etc