Arrived fast, and is overall quite a good cutter, especially for the money. As with most of these things, required a bit of tuning and and some decent lubricant for the little ratcheting arm (which is just a piece of steel) to engage properly on each push of the arm, otherwise it only engaged every other time.

Purchased these to cut roofing sheets, well within the limits in the sales description.
The most I got was a “cut” 30mm long, an ugly cut. The rest of my attempts resulted in the sheet being crimped.
There was far too much play in the bushings for the rollers.

Wasted half an hour trying to make it work, the thing ended up in the bin.

This item is solid, well constructed and cuts well. I’m using it to cut 1 mm steel sheet and it does it with ease. It is not a cheap Chinese knock off. It is good value for the money. I would recommend this item as certainly good for home use and probably commercial use as well.