I've tried several of these cell phone signal boosters, and I have to say, not one of them is worth a dime.  Do they boost your cell signal?  Maybe...a little....sort of... not really.  Yes, the bars on my Sprint phone do jump a tad when I turn this on, but it's barely noticeable and certainly not worth the exorbitant price.  This one just feels like tech snake-oil.  No, moving to different locations made no difference.  Nothing did.  This thing is just a placebo.  Don't bother.