In use for just a week, it operates pretty much as expected. Still getting used to a slightly different arrangement of function keys from the 30-yr model that finally gave up. Good action to the keys, so far no input errors due to touch. Only "Con" that bugs me is that the display will not show the end "0" (as in $22.40) in a calculation result. It will appear as 22.4. Likewise, if you add (like) 11.50 plus 10.50, the result will be displayed as 22 (no zeros). There is no control button or switch to change this, so you just have to pay attention to where the decimal point is. One reviewer noted that this calculator tends to "skate" around on a smooth surface as keys are punched - a correct observation and due to only two small rubber feet at the underside front. I solved this annoyance by adding rear rubber "feet", using 3/8" rubber drawer bumpers with adhesive backs.