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Title: Failed Twice
Review: While I like the operation, the size, the shape, etc., I don't like the fact that I've replaced it twice. Unit A1 failed and I mailed it for warranty replacment. Being addicted, I ordered another right away; figuring that it's an electronic device and [things] happen. I figured wrong. Unit B1 has now failed in the same manner. Unit A1 was replaced promptly. I'm now using Unit A2, and have returned Unit B1 for replacment. But I have no confidence. I'm buying another, different, unit. Unit B2 and probably Unit A2 can be emergency backups.
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