I install the Wilson and other boosters in homes and businesses once in a while.. They won't make an already bad signal better. What they will do is transmit a good outside signal to the interior of a building that does not get reception due to construction materials and so on. They do that quite well. I installed a Wilson system at a house on top of a mtn near Centennial Cone Park and it transmits the bad outside signal to the inside of the house at least where there was no signal inside of the house before. Making a call without dropping and so on is still spotty.

If you have a bad signal outside and you have decent internet the Verizon or whatever carrier internet based boosters are going to work better for you. If you already have wifi in your house you may want to check and see if your phone does wifi calling.