This was my first refurb.  I was very careful reviewing the specs of competing offers, even though this would just be a spare for checking e-mail and the Web ... no gaming requirement.  Overall, it's doing the job fine after a couple of weeks of use.  It arrived quickly and was clean.  I'll remember OptiPlex if I need another.That said, being an engineer, I expect every specification to be met.  Several were missed.  (1) The listing clearly specified an AMD 1GB graphics card.  There was no graphics card. (2) The listing intimated an HDMI video connection (which I need.)  What it actually has is a display port output, for which the vendor supplied a DP-to-HDMI converter.  The converter did not work.  Fortunately I had a better one with another machine, which did work. (3) The listing indicated that a "genuine Dell Windows 10 reinstallation disk" would be provided.  This was important to me, as downloading the OS out here in the sticks is a loooong proposition.  No disk was included.I ran a full hardware check when the machine arrived and, beyond the above, it appears to be as listed.I contacted the vendor, who was responsive.  However, no graphics card was offered, and I was told that Dell does not offer re-installation disks (good reason not to list it.)  The vendor offered to accept a return and replace it with another unit (would it be any better?)  But by then I had it up and running, and the on-board Intel HD graphics are way better than I thought they would be.  It was my decision not to return it.  The vendor did agree to provide a new DP-to-HDMI converter (got it, it's the same and doesn't work) and a thumb drive with the OS (got it, no idea if it's useful.  Hopefully never need to find out.)My bottom line (at least at this point, two weeks in):  Buying a refurb is a good, economical bet if you're comfortable perusing specs and fiddling a bit with the machine.  Just make sure what you get is what you signed up for.