I just recently bought the kit, but have already used both my existing 32oz wide mouth jars, several pasta jars, plus a few smaller jars for produce in fridge (grapes, cherry tomatoes, chopped kale, beets, pico de Gallo, celery sticks, cooked black beans, cooked chicken peas, and an avocado). And also in cabinets - several types of grains and nuts and dried fruit are now in vacumn-sealed jars.
It's great! I can easily move jars around (or see through them) to quickly find what I'm looking for. ...