Works great so far. I have this antenna connected to a universal patch adapter that just sticks to the back of my iphone (iphone 4s). I have the antenna outside my room where my signal strength is -77 to -87 (4 bars). The wire is run into my room where, with the door closed, signal strength is -102 to -112 ( 1 or 2 bars at best). I place the patch adapter on the bottom left corner of the phone and signal goes to -84 to -91 ( 4 bars!! ) I have tested it over and over. It works, and get this, the signal I am increasing is coming from a Wilson DB pro booster. I'm using it to grab the boosters signal and transfer some into my room. Yes using this alone straight to your phone w/o a booster inline still works great. I'm on a drilling rig where we had "0" service in living quarters and max of 3 bars outside. We now have 4 bars inside while still only having 3 outside. But note the living area is a huge enclosed steel box so the signal the booster is putting in it is not getting out just as the outside signal isn't coming in. At least not on its own. But it does with a Wilson booster. P.S. We have a DT desktop booster in the lounge/tv room that works good as well. The lounge as well as our bedrooms are basically a steel box inside a steel box when we close the doors. I do not recommend using two systems. It's better and cheaper to get a larger unit. The DB pro is not made for 40 or so guys texting, calling, facebooking, etc... All at the same time. Although its gets the job done you can tell when everyone's on it and when they aren't. Internet is super fast with a 5 to 10 people. With 30 or 40, it's bogs it down.
Great resource for portable power. Solid construction, easy to operate and dependable. I have this in a work van to provide power for operating a laptop, recharging batteries, running tools like a small air compressor and lights. Has come in handy in using my tools in assisting stranded motorists to get them back on the road. I like the battery saver feature that will not let it discharge my vehicle battery to the point of not having starting power.
It's easier than ever for do-it-your-selfers to customize sound and security systems, so you don't have to rely on factory gear; aftermarket accessories improve driving enjoyment from vintage add-ons like speaker boxes for classic sports cars or specialty stands for satellite radios that include adjustable cup holders. The list with hundreds of products goes on and on as more niche players create more options for car audio, video and navigation.