Been using one for so long I don't even want to say how many years.  I am on my 2nd one which shows how durable they are.  I love sucking the air out of the bags!  I have recommend them to all my rural family & friends.  I am not able to garden anymore but I use to have a large garden as I live in the country.  It made such a difference in the quality of my frozen foods I put up & the meats I bought at the store.  I could just go on & on.