Does it work?  Yes. Does it work as advertised - yes.  I can count on one bar in the house without the Wilson, using the Wilson, as advertised, I get 5 bars.  The key is AS advertised........ this is not going to be used any other way. The location of the recieving antenna and the transmitting antenna is CRITICAL!  You need to be fairly close to the recieving end of this  and everything pretty  much needs to flow in one direction.