I ordered two of these HP 8300 desktops and have only had them for a couple of weeks now but so far so good.  I purposely ordered each one from a different refurb merchant on Amazon because I want to see if there would be any difference in quality or packaging.  They both arrived well packaged and very clean; looking like they have never been used.  Only thing is you get a very generic mouse and keyboard although these components appear to be brand new.  While the keyboards operate fine, you can tell they are "B" grade.  One of the keyboards had the tactile bump that's meant for the "J" key molded on the "K" key instead.  I didn't realize how much I relied on these bumps to know where to place my hands properly on the keyboard without looking.  It has been so annoying to see that you're typing all the wrong letters from your right hand because if this manufacturing error.  I plan to switch it out to a better one.  Aside from this small but extreme annoyance the PC's run great using Windows 10 Pro.  The units also run fairly quiet and all the jacks and ports work.  My biggest litmus test will be to see how long these refurb'd units last as that will determine their true value for the sub-$200 I paid for each one.