I think the weight is OK. Total weight of stove is c.320g including the cooking pot. Compared with a Brukit at about 460g it seems fair, albeit not as good.,
My stove, SnowPeak Gigapower, is 110g. Plus gas cartridge of course*.
But my 550ml (~ 1 pint) titanium pot & lid is 79g, which is less than the weight of the Optimus windshield @ 87g!
*Anyone else noticed that there's less gas in them now, 230g when it used to be 250g?
I always used to have a bit of gas left at the end of my 3-4 day trips, but last one I almost ran out.