I personally have experience with DS. Bought my rig a looooooong time ago, so things may have changed, but when I received my PC, it booted right out of the box. I didn't have to reseat anything. They use an inflatable, moldable foam(?) inside the PC, and ship it in a very large box, in which, the PC is pretty much suspended, "floating" inside of the box. But things happen. Their customer service, as I remember, is great, so if anything is broken, I'm sure it'll just take a single call to get them to replace it for you.