Bought 2 computers. Both looked very clean inside and the cases were very well maintained.Fired them up and while the first booted up and was a 5 star value for operation, the second unit was DOA.Shipped it back the next day, checking the replacement option. Got the notice that the DOA computer was recieved a few days later, but the replacement would arrive 3 to 4 weeks later.If you have to send it back, don't have them replace it.  They will drag their feet for nearly a month before its replaced. Better to just send it back then buy it again separately. Get your computer in 3 or 4 DAYS instead 3 or 4 WEEKS