Although this comb binding machine is not as easy to use as larger (and much more expensive) models - it gets the job done. I am a teacher and am continuously binding booklets and student portfolios. Having my own binding capabilities in my classroom saves a lot of time since I (or my student assistant) can do when I have spare time. The only complaint is that I have to turn the knob to open the combs A LOT. I suppose if I did 30 or 40 at one sitting, my hand would cramp, but I don't do that many at one time.