When I first heard of the Sweater De-fuzzer, the first thing I thought was "what took them so long?" I love sweaters, but hate how they look after being worn and cleaned over time. Little balls of fuzz show up and ruin the look of the sweater. I'd usually iron the sweater on low heat and that helped hide the fuzz, but didn't remove it.
This little gadget is really quite good. It essentially shaves off the fuzz without causing damage to the rest of the garment. It's very small and is easily held in one hand. This one runs on just 2 AA batteries, which last a long time.
The fuzz collects into a little plastic see-through container so you can see how much fuzz has been removed as you work. It's very easy to empty.
The De-fuzzer makes a little noise as it works, but it's not bothersome or distracting. I often use mine while watching television.
It is not strictly for use on sweaters. I've used it on just about any type fabric that has started to look bad. This isn't going to make your garment look new again, but it will make it look better. They only cost a few dollars and in my experience, it's something I'd never be without.