I run a fishing boat and service is poor sometimes in the area we operate in. I tried the expensve boosters and they were a waste of money. When i purchased this, i got the marine antenna to go with it, what a difference! I normally get 1-2 bars max and little or no 4g service in certain areas, but with this its almost ful signal most of the time.. I also use it in my apartment because i don't have a home phone, my cell signal sucks there, but with this its much better.. I mounted the antenna on the outside patio and ran the wire thru with the cable wire, works perfect! You gotta realize that these may not work for everyone, but they do work for most if set up properally..