Bests & Worsts Reviews from Amazon

Background info - I'm a fairly technical nerd who's into ham radio and electronics of all types. I've been using this system on my RV for about 4 months now, in several different locations. I have had success in some, but not others. Keep in mind, there has to be SOME signal available for the booster to work. Also keep in mind that the inside antenna that distributes the boosted signal has a pretty small area around that works. That is by design, if the inside antenna was blasting signal you would get interference with receiving antenna and it wouldn't work. After reading the reviews it's clear that some people have completely unrealistic expectations for this device. It's not going to boost signal all around and outside your camper. In my experience, t's good for about 3-8 feet from the antenna. Here's my experience: We have an aluminum camper, so inside the bedroom we always get terrible signal strength, even if it's decent outside. In areas where we can get a little service outside the camper, we usually can't use the phone inside the camper. However, with the booster on and antenna inside the bedroom, we can stream video. Without it we could barely load a web page. If we are in an area with little to no signal outside, we still don't get much usable signal, even with the booster. Once or twice I've been pleasantly surprised that we get enough signal to make phone calls inside, even though we couldn't outside. I spoke to a woman in customer service several times before purchasing. She was very well informed and helpful. After purchase, I wanted to order an extra antenna and NMO cabling so I can also use the booster in my truck, and again customer service was spot on with their suggestions. 4 stars because it generally works and does improve signal. 1 star taken away because I was hoping it would boost signal more than it does. Also, I think it's pricey, certainly compared to other Chinese knock-offs on Amazon, but the fact that you get a complete set of properly matched impedance antennas, connectors, power options, cables, and booster, plus good customer service to problem solve makes it worth the price.