iv'e had two, gave brotherinlaw one got a m8 one, never had a bit of trouble with any of themI have one. Used it once and put in cupboard. They over heat to quick, like 1 or two seals and takes an age to cool to seal again. Ok if using bags but a pain when cutting off the roll and have to seal both ends.
But, I do buy the rolls of bags, I wait till their in the reduced section