"I come across this by accident, noticed that it had a number of good reviews so i thought why not and bought the last one from my local counter.
I thought it was just a gimmick at first, who needs one of these? use a knife instead!
Having used it a few times, i must say its very handy and saves tying to cut cartridges with a stanley knife. Makes a very neat job and when used to cut nozzles it is very easy to get the angle you need.
Will definitely buy another one of these when its blunt."
"I bought this as I like gadgets. No other reason. Although it works well I did manage to snap the corner off the blade when putting it on a silcone cartridge. It still works but I am not so sure about reliabilty now. I will take it back to plumbfix for a replacement and see how that one fairs. Quite expensive but definately better than using a stanley knife."