I have had many Foodsavers.  It's a staple in  my kitchen .  I use it almost every day  This unit  was sent to me as a replacement for a defective unit.   It is the only unit that I really hate.   Sealing is very difficult.  I thought I would get used to how you had to hold the bag and push the bar to seal but it hasn't gotten any easier.  It's a terrible design. I almost hate to use it.  I wish I could exchange it for one that  is easier to use.