I bought this a few weeks ago to replace my old foodsave that quit sealing.  What kind of design is this???  While holding a bag of food and trying to keep the bag straight, you have to push the bar under it with both hands... Really?  You do, you have to push the bar on both sides.  Guess what happens??? It falls on one side and the seal is uneven.  To get a decent vacuum, you need to lay the bag on a stack of books or dishes so the weight of the food doesn't pull the bag down.  Or, you just need four hands!  It does not vacuum all the air out and rattles  so loud it sounds like it's falling apart.