After struggling with poor cell signal in my house for months, I decided to try the Cell Phone Signal Booster from Full Signal. The difference has been night and day! My alarm system, which used to drop connections constantly, now shows full bars. No more annoying beeps at 2 AM—finally, some peace.

The installation was straightforward, though the instructions could be clearer about the small copper splitter cable. Once I figured that out (with a bit of trial and error), it connected to the nearest cell tower almost instantly. The LCD screen displaying signal strength is a nice touch—it helps fine-tune performance without needing professional tools.

One gripe: the cables. They’re bulky, and the connectors require a large hole (over 1/2 inch) to pass through walls. A smaller connector on one end would’ve made life easier. Still, the build quality is solid, and it supports multiple carriers (AT&T, Verizon, T-Mobile), which is great for households with mixed devices.

Performance-wise, it’s a game-changer. My phone’s signal jumped from -110 dBm (basically unusable) to -80 dBm—calls are clear, texts send instantly, and streaming doesn’t buffer. Just note: if your area lacks certain GSM bands (like one reviewer mentioned), this might not work for you.

Pro tip: Use apps like 'Network Cell Info' and cellmapper.net to identify towers and optimize antenna placement. Trees or obstructions can affect performance, but even then, it’s an improvement over dead zones.

Verdict? If weak signal drives you nuts, this booster is worth the hassle. 4/5 stars—knocked one for the clunky cables and vague manual.