It's a great way to expand your storage capacity. It's reliable, comes with a 2 yr warranty and it's pretty rigid.
It's size is small as well. You can fit it in your pocket easily, carry it in your bag, it's very portable and convenient. It has USB 3.0 so data transfer speed is very good.
I'd recommend it to all of you who are wondering which HDD to buy. It's got the trust of segate, it's small and its highly reliable. The pricing is good too.