Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very sleek and seems easy to use; stopped working in two months

I bought this external hard drive to back up my Mac laptop. It is sleek looking and seemed very easy to set up and use. However, after a couple months, it could no longer "mount" on the computer. We followed all the troubleshooting instructions on the Seagate Web site and have determined that it is physically defective. I am now trying to work with Seagate to exchange it - a very inconvenient process. I suggest looking elsewhere for an external hard drive.