sure will not cut your hand when u slide, cause they will file the edge when they apply the laminate. Its the consistency of the line's thickness that matters. From my experience for poor carpentry workmanship: cut line not straight resulting "fat,thin,fat,thin black lines" or "fat to thin black line, which we called rat's tail". Multiple laminate ona single surface, carpenter lazy to plan, or trying to make things easier as no need to cut odd shapes. laminate joining line at edge are too thick, should look for 0.8mm to 1.2mm at most, anything smaller is very very difficult. Door alignments, makes or break the whole carpentry abs trimming is join cleanly and with good alightment, poor joing and alighment = it will peel easily solid ply wood is used instead of "mu xin ban" or woodcore which are soft, cheap, extremely light and brittle. These are way of carpenter undercutting consumers. internal pvc are in good conditions. the rest are harder to observe just by looking, takes time to tell. - Martin