I used to be a sheet metal worker, and I got used to having professional equipment at my finger tips every day. Now I don't have easy access to a brake. I can use a vise
(without special jaws) or an anvil to get pretty good bends, for most of my needs. That tool you posted will only work for very narrow pieces. But if you need to get really nice clean consistent bends on a batch of metal strips...the way I would handle it is to get them all cut to size, scribed and ready to brake. Then I would stop off at the nearest sheet metal shop and ask someone there how much they would charge to bend them up for me. Often a 12-pack will do it.
On the other hand, if you want to be able to make lots of bends of lots of different sizes, thicknesses, widths, etc, now and into the future, I think you won't like that tool, because it is going to be very slow, and very limited in sizes.
If you want to be able to really bend various sizes, shapes, gages, etc, from now on...watch for a used US-made sheet metal brake for sale. They can be bought for around 400 to 800 bucks, depending on type, size, and condition. Ideally, if you're only going to have one brake, and you expect to use it often, you would love a
Pexto or a
Niagara "box" or "finger" brake.
If you decide to go that route, take along some thin and wide pieces of steel and light gage aluminum, cut to the width of the brake, and then bend them past 90 degrees. Then pull them out of the brake to see if the piece folded the same degree on the entire length of the bend.
Just my opinions...good luck!
