I bought this to replace an old one that stopped sealing, after years & years of use.  I really like Foodsavers but this model is a bust.  You have to hold the bags up to vacuum and seal or the edges will flip out of the channel.  Also, any least bit of moisture shuts it down and you have to wait until the flashing lights turn off (not a pause - minutes)  I'm now freezing veggies THEN trying to vacuum & seal.  I also have to have a container in front of the unit to hold the bag up towards the vacuum channel.