It didn't help my situation enough, so I returned it. Many reviews I read here gave me some false hope that this amplifier would boost my signal, and it did--- insignificantly. That's not the fault of the device, though. The product descriptions for these devices are nowhere near sufficiently detailed.
The truth is, getting great reception from a digital antenna entails quite a learning curve, as well as much trial and error.
This device is a DISTRIBUTION amplifier. When you use a splitter to distribute your signal to multiple rooms and TVs/devices, it weakens the signal traveling down each cable. This amplifier will boost the signal before splitting it off to different places. THAT is what it's designed to do.
In that right, it worked for me. However, my need was different. In my situation, the signal was a bit weak when it hit my rooftop antenna (a decent model, but it had no amplifier built in). Then the weak signal traveled through 60 feel of wire, which weakened it further, when it reached the Rocketfish amplifier. All the poor thing could do was to boost an already lousy signal. It helped, but not enough.
I needed to boost the signal as the outdoor antenna first received it-- at the top of the mast. So I returned the Rocketfish and purchased a Winegard Boost XT, model LNA-200. That one did the trick. I went from 29 channels (some weak) to 50!
So-if you have a good signal from your antenna and need to send it to several places, try this Mini Drop (--talk about a techie, vague, useless name!) amplifier. On the other hand, if you live 10-25 miles from the local transmitters like I do, amplify the antenna itself. I'd recommend this product only IF your situation requires a distribution amplifier.
But for goodness sake, buy locally and SAVE YOUR RECEIPTS! I returned several items that turned out not to be what I needed.