Debra-- Useful for lots of other stuff too. I buy coffees in 5 lb bags (less than $8/lb that way) and it's roasted to order and shipped that day. Dividing it up and freezing till I need it keeps it really fresh. I use lots of fresh ginger (which doesn't keep real well); using a larger bag than I need I can vac it, freeze it, trim the end off the bag when needed, grate the still-frozen ginger, return it to the same bag and reseal. I freeze habs, cherry peppers, etc., and do the same thing. And great for storing dry stuff you might not use often but don't want to freeze--nuts, dried fruits, exotic rices, etc.
When I think of the literally thousands of dollars in spoiled or questionable food I've pitched over the years I kick myself for not getting one a long time ago.
Mine's a Tilia. 1050 I think? It has the manual vac option.