You really need to flip it open once to appreciate the beautiful F&F. I ended up cutting a total of 70+ CAT5 & CAT3 cables. My technique was straight forward: I bundled up the cables in groups of 5 and would fold them twice in opposite directions to create a kink, then the GB would come in and with a little pressure and a slight angle they were cut. 
I could have used some "butter cutters" but I felt that I had an appropriate tool for the job. Blade is still sharp, no chips/nicks, nothing. I highly recommend it.