This computer is working out just beautifully -- so far!  A good friend of mine, who worked as a computer programmer prior to his retirement, tells me that he believes, because it so very clean, that it is actually a NEW computer!  WOW!  It is fast, quiet, and meets all my needs.  I am very happy with my purchase.  The price was excellent -- less than half what a comparable new unit costs.  And they don't have Windows 7.  I am a very happy Amazon shopper.