I just have a pretty basic Food Saver model.....I can also use it to seal mason jars (with beans/rice, etc) ....
I bought it after my 20 year old model finally quit working. :-)
Yes....I use it very often.
This is what fills our freezer, with meats (beef, chicken) and many veggies.
Keeps them good MUCH longer than store packaging would....beef, at least two years....chicken...over a year.....veggies even longer....so far.
We like grass fed beef, so, when its on sale, I stock up (roasts, steaks, ground beef, etc.)