It works great.  I now own two of this model.  The first one is still going strong.  I measure to 1/1000 of an inch, and these give me an accurate readout.  The only reason I would buy a different one would be if I could find one with a detachable screen.  At times, it is hard for me to read the numbers when the calipers are applied.  That's no fault of the calipers.