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Seems to work alright, but I had to really turn up the adjustment to get it to cut correctly. It works well with smaller gauge wire, but struggles to cut thicker stuff. The clamps that grab the wire just don't seem to hold the wire well and it slips. I would probably recommend getting something nicer if you want a tool that will last.
Doesn't work well on all wire types and needs some fiddling, but works well enough to justify its excellent price (bought when on super sale). Looks like one company makes essentially identical units for many vendors. Once adjusted for a particular wire type, it works well.