I have a foodsaver from about 12 to 15 years ago. I use it quite often for storage and cooking.
I buy boneless short ribs from costco to make stew with and freeze them in packages big enough for a meal. I buy nuts on 3# packages and freeze them in about 1# packages.
I have a couple of immersion circulators for suos vide cooking. I cook steaks a lot, ribs and chicken do well also. I'm still trying to master veggies and other items.
A couple of tips I can share are:
put a double seal on the items when you are using the roll material. I've had the seal fail a few times. The sealer I have has a manual seal mode (essential if you are using rolls). After I seal the first edge, I pull it out about a quarter inch and seal it again.
If you are sealing wet foods or liquids, make the bag longer than you think. Once you put the food in and try to seal it, the liquid will creep up towards the edge you are trying to seal. If it makes it to the heating element, it will never seal properly.