I've had one of those and the Super-Fire.
I currrently have one of these >> Monument 3450g Gas Torch (fits CGA600 Cylinder) MON3450
The quality is just as good as the Rothenberger, it does the same job and it's not as expensive at about £30.
Good to know Geordie thanks , to be honnest bought it over a year ago around 90£ inc gas can cylinder.