First time buying refurbished PC, so I just crossed my fingers.  The unit arrived early, it was very clean - not a scratch -  and it booted up right away.  Windows updates didn't take too long, but there were problems.  Not clear to me where the fault of the problems was, but my Logitech c920 video cam would not be recognized (had to buy a new one fr a different manufacturer that worked fine).  The only problem specific to TekRefunds was that the mouse died in about 2 weeks.  I made no issue of it since I had spares.  I am writing this prior to the expiration of the warranty period.