Jighead

I purchased a signal booster about 6 months ago and I'm not impressed at all. I bought a zboost fromwi-ex and it promises to bring whatever signal you have outside inside and it claims to cover 2500sq ft. I get 2 bars outside and nothing inside. As long as I'm within a few feet of the base I can place a call inside, but it's not good signal. I'm going to try moving the outside antenna again but I don't think it's going to help.