First off, let me just say this machine is a beast—in the best way possible. The all-metal construction gives it a satisfying heft, and it doesn’t wobble or flex when you’re punching through stacks of paper. I’ve used cheaper plastic binders before, and they always felt like they’d snap mid-use. Not this one.

I tested it on a mix of materials: regular printer paper, cardstock (for my niece’s homemade coloring book), and even plastic covers for presentation booklets. It handled everything like a champ. The 12-sheet punching capacity is accurate, but for thicker paper, I stuck to 2-3 sheets at a time—no jams, no misaligned holes. Pro tip: If you’re binding something like a booklet, size up your comb rings. The included 22mm ones work fine, but going slightly larger (like switching from 3/8” to 1/2”) makes threading the pages way easier.

The adjustable margin guide is a game-changer. I messed up my first try because I didn’t realize it could be tweaked (user error!), but once I set it to 5mm, every hole lined up perfectly. Loading papers horizontally feels more intuitive than vertical feed—less chance of crooked punches.

One gripe? The handle isn’t grippy enough; my palms got sweaty during a marathon booklet-making session. But that’s nitpicking. For under $50, this thing punches way above its weight (literally). It’s become my secret weapon for turning PDFs into polished manuals and kid-art into keepsake books.