Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Cellphone Booster

It sucked - never got me beyond two bars - we have a major medical condition with my wife, and all calls from physicians were dropped with no clarity. I would never buy this product again even after having friends (I am handicapped) bring it up on the roof around the chimneys.I went to Verizon, and only because I am handicapped, they gave me on trial to be fair, their Samsung unit to go into my router which they say is designed for my Blackberry Storm II.It arrived today and when I know results, I will get back to you all.The Quantum Company, where I got the original one, have so far been really fair and good about returning it although I was surprised at the stocking fee of 20% because I legitimately opened it - then I found out they also had a judgement about what price to refund. HEY, it did not work - give me a break! I will replace it with the Verizon recommended unit. Let's see what happens.Respectfully -Charles E. Campbell