Negative Positive
Title: Do not buy, if it will be difficult for you to change the product.
Review: I wish i had read the bad reviews more carefully before buying this product. I read them afterwards, my problems were the same with those of others. The device didn't work properly. I did everything in the book, many things they don't mention. It eventually started working, but it was unreliable. Exactly what you need in this kind of a product. I live outside of US, for most of the year, so exchange was not a real option. I read on of the bad reviews, took its advice and bought a tri tonics which i have been using for a while now with no problems. So, if you don't think you'll be lucky, like most of the reviewers, and it is hard to exchange. I'd say go with tri tronics. They are good.
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