I had this same exact model last year for X-Mas. It's a good appliance for the price, it definiately turned me on to foodsavers.
It always worked OK. A few issues were.... extremely slow on large items... very finicky on how bags laid in the sealer and completing seal..... heater/melter seamed to be for that companys bags only.... a heavier better quality bag didn't melt/seal as well.
Overall OK machine, good place to start to see what features you want and need in a more exspensive model.
But it definiately opened my eyes to the world of food sealers.... and quickly upgraded. I now wonder how I lived without one.