The Galaxy Tab 3 might not be the best line of tablets available, but this is a legit deal. The Tab 3 10.1 is still listed for $300 on Amazon, so this refurbished deal is a good value if you're looking for big, cheap tablet. That's how we like 'em – big and cheap.
The Tab 3 10.1 is a bit of an odd device. It's one of the few mainstream Android devices with an Intel Atom processor. The support for x86 has improved over the years, so you shouldn't have much trouble. Other than that, it's got 1GB of RAM and 16GB of storage. The screen is only 1280x800, but it's cheap. It is what it is.
There is a limited quantity available, and this is a good price. The Tab 4 is out, but it's not really much of a step up. Maybe this is the one to get.