Having returned for warranty replacement four Seagate drives in the last year, I no longer trust their drives to do anything but fail on a regular basis. They replaced the drives with refurbished ones and one of refurbished drives was one of the four failures.
I now keep their nice little shipping boxes for future returns.
These people have a long way to go to get back on top, or even near the top in my opinion; the four returned drives speak for themselves. Their products may be better but I'll never know. New drives I buy are of a different brand.
He who puts all his backup or RAID capacity in a single manufacturer is planning on disaster whether he knows it or not.