Review on Powerful Cell Phone Signal Booster for Home and Office - Enhance GSM, 3G, and 4G LTE Voice and Data Signals Across All Major Networks - Covers up to 5,500 Square Feet by Richard Alemayehu

Excellent customer service. Fast reaction. My house is a one-story ranch, metal roof, aluminum siding. With ATT it was 0 to 1 bar inside. Now it's the same with xfinity mobile. Did a temporary setup as they suggested. Place the antenna on an 18 foot pole. It turned out that the best signal came from the north, northwest, and not the south as shown on the Verizon coverage map. You need to rotate the antenna 15 degrees and then wait 30 seconds as the device needs time to locate the signal. It didn't matter where the room wall antenna was placed. I had up to 3 bar in it when it was 1 bar without a booster. No more missed calls. bad voice or dropped calls. My son has ATT and he had 3 to 4 bars while I was reading 2. Disconnect the device and both dropped to 1 bar. I installed the external antenna on a 16ft 4x4 stand because I didn't have the roof panel facing the right way. Following the instructions, I set up my Iphone 11 (14.3 ios) to turn it into a signal strength meter. As a meter, he said there wasn't enough signal to boost, but had up to 3 bands and good quality calls. I would just use the bar phone. I still need to fine-tune the external antenna's direction and horizontal angle to get more bands, but I'm in no hurry. My son just ordered a block for his house. My device has a 5-year guarantee. So far I am completely satisfied and can recommend it. And it has the lowest price with an external directional antenna. A directional antenna (pointing towards the tower) is crucial for amplifying a weak signal.