Not much to say about a good digital caliper other than that it works as it is meant to.  I can't personally attest to the ultimate level of precision that it has or doesn't have, but for my needs it is more than accurate.  Just make sure not to leave it on by mistake as I killed my battery by letting it just sit in the drawer'; perhaps I left it on.  But I was pleased to discover that they included an extra battery!  That was a nice touch so my caliper was quickly up and running again.