I have one...older model....and yes there is a bit of an adjustment, but it does a good job.......but, one just has to be reasonable....don't expect it to cut more than 4/5 layers, keep the pressure steady all the way thru the cutting process,on a level table at the right height....just like using a rotary cutter........not like cutting with scissors....one can do that while sitting on a sofa eating bonbons......