Just like The_Zodiac said. If you are that concerned, why buy it? You're not buying a faulty tablet. You're buying a tablet that has a possibility of being faulty. Let's just say that there is something wrong, why wouldn't you just exchange it for a new one?
Sent from my Nexus 7 using Tapatalk HD
Phone: Samsung Galaxy S3 I747M
Tablet: Nexus 7 (2013)