I was a skeptic....but this really works.  Purchased for my Mom who had "emergency calls only" to one bar of service with ATT inside her home.  We live in a very rural area.  She could get one or two bars outside in the spring and summer and 3 in the fall and winter.  Installed the Wilson product in her living room and she now has 3 to 4 bars all year inside her home.  Range is good, keeps signal pretty much through her whole house, although closer to the receiver is obviously better.  Would recommend to anyone looking to help with cell signal.