Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Nice-looking, but FireWire ports were both defective.

I bought one of these drives since it had a good capacity, nice design, and both FireWire and USB 2.0 ports. However, both the FireWire ports were completely dead--the drive didn't respond at all when I plugged it into my Mac, nor did it show up on the desktop. The USB port worked OK, but it was pretty slow (FireWire is faster than USB for large data transfers), so I exchanged this drive for another of the same model, thinking the odds that two drives would both have malfunctioning ports would be pretty slim.I was wrong. The second My Book Premium that I bought had the exact same problem as the first (other online reviews I've seen also allude to defective batches of My Books). At this point, I gave up and bought a different hard drive.