A friend of mine gave me this; she found it much to difficult to use, but as a techno-geek, I love it. I've wanted one for years, but my wife was always against it (she is not happy with many of my technological choices). Foodsaver no longer makes the 750, and that's a shame.
Still, it's great for freezing bananas, fresh bread crumbs, nuts, and anything not too liquid (tomato sauce does not work well). It sucks out all the air (the enemy of all food storage).