Bought two of these reasonably-priced filing cabinets for our PE department at our school, plus one for my accounting office.  They are just the right size for fitting under our desks and so far seem to be sturdy performers.  I am opening and closing mine all day, every day.  I appreciate having the lock.  Admittedly, a determined criminal probably wouldnt have too much trouble breaking the lock, but it does the job to keep out the casual snoops, which are more of my concern.