The machines works very well, it is quite solid. I have made several booklets with this, collecting/binding collections of papers that would otherwise sit in a file folder in a file cabinet. For that alone, I think this machine is worth it!!
The punch has a handy drawer which collects the "hole punches", making it easy to empty later. Also, there's a second drawer in which you can keep a variety of plastic combs/spines for binding --- this makes it much easier than going back to the supply closet to get a 1/2" or 3/4" or 1" comb.
I've taken a pile of monthly forms and spiral bound them, then they're all in one place --- I just flip the page & I'm onto the next month. I teach art to kids. Took the best ideas for sculpture & spiral bound those. Now, when I need a sculpture idea, I just pull the booklet off the shelf. Ditto for booklets on painting, collage, figure drawing, etc. Sometimes I print off PDF booklets from the internet & bind them. Even amassed all my dieting tips into one handy booklet to recharge my motivation when I need to drop a few pounds. They are handy to slip in my tote bag to read in the doctor's office, on a trip, etc.
I find that having these little booklets on hand, I use/access the material much more. In that past, the articles simply accumulated in file folders, buried in a file drawer. This spiral booklet method is much more fun.
The only difficulty I've found is that it is hard for me to line up the plastic spine with the myriad of holes in the edge of the paper --- I'll get 80% "hooked" on the spine, but 20% don't want to go on. This is not a criticism of this machine, however, as I think it would be a problem with any spiral binding machine.
Overall, I'm having a lot of fun with my purchase!!