Initially appeared to be in good working order, although it did have plenty of the typical cosmetic issues with Refurbs like sticky adhesive where inventory stickers once were, scrapes, scratches, and a metric ton of dust, but nothing that an air compressor and some handy wipes couldn't overcome.Booted up into Windows 10 Pro first thing...that's a good sign...but also where everything began to unravel. The moment I plugged it into a network the first Windows 10 Updates began to download and install, reboot the machine, and fail. After about three dozen reboots I ran a Scandisk and discovered that the "new" SSD is a 5 year old LiteOn that was failing which is why none of the Windows 10 Updates could install properly. Not too big of a problem as the workstation came with a Win 10 Pro Full Version DVD-ROM so I threw in a spare Samsung SSD I had laying around and tried to do a clean install to a good SSD only to discover that the DVD-RW drive doesn't work! Fine, I'll just convert the Win10 Pro DVD-ROM to USB to find out that the Genuine Microsoft Windows 10 Pro DVD-ROM is unreadable in any drive! What a nightmare!On the positive side every drive expansion slot had a Disk Tray. No need to order extras. An additional positive is that I threw in two Seagate Enterprise SAS 6TB HDDs and it recognized them right away. I was worried that I might have to play with the cables from the backplane and change where they plugged into on the motherboard...but the backplane is indeed connected to the LSI SAS Adapter, not the SATA ports, so this was a pleasant surprise. You should be able to add either SATA or SAS drives to this workstation.Not sure if I am going to bother returning as the time & cost of shipping is more than the cost of replacing the bad SSD, DVD-ROM Drive, and burning a new Windows 10 Pro CD that I can download from Microsoft TechNet. However, these could be significant deal-breakers for others. So CAVEAT EMPTOR. I may change my mind on returning if I discover anything else wrong with this workstation in the next few days.