Instruct: Classify the given Amazon review as either positive or negative.
Query: Usable with modifications

As was noted in another review, the design of this cable could definitely use some work. The decorative corners on the end of the retractable cord that plugs into the pentagonal plug head get in the way if the place where it goes into your device is wider than the pentagon itself.However, since the projections on the corners are just decorative and not functional, I took a Dremel tool and ground them down at about a 45 degree angle. That solved the problem of connecting one of the mini plugs to my e-reader.If this had come with properly designed plugs I would have given it 5 stars, because it works perfectly and makes a great travel companion because I can use it for multiple devices without carrying multiple cables.