I ordered this after using one at a friend's house.  I have not used any other rotary cutters so I really have nothing to compare it to.  My only issue is that the sliding mechanism to close the safety cover after use is a little bit lightweight, so if I try to close it one-handed the black slide presses into the yellow shaft instead of sliding up.  I often have to reposition my hand and try again, which is inconvenient but hardly a deal-breaker.  Very satisfied with the way it hugs the ruler and cuts.  Have not had to replace a blade yet, so I have no opinion on that.