I have been using various different Food Savers for 30+ years and never had a problem with any of them. The only reason I say several is I was presented with opportunities to upgrade on the cheap.
About 4-5 years ago my wife bought me an Avid Armor USV32 chamber vac and it now gets 95%+ of the use. The chamber vacs really are a step above the suction type sealers. They are more expensive on the front end but the bags are way cheaper. Plus you can seal soups, gumbo and other liquid stuff and get a good seal.