Bests & Worsts Reviews from Amazon

This booster did not work in my location. I have a Verizon phone and need good 4G LTE data bandwidth. My location is in the mountains about 5-6 miles from where cell towers are. As it turns out, Verizon LTE is in band 13 (746-787 Mhz) and AT&T operates LTE in the adjacent band 17 (734-746Mhz). The result is that the booster goes into an overload situation ("cell tower too strong") and reduces the gain on the 700Mhz band (it shows an orange/green flashing LED). On the 3G bands there is no overload and the booster operates at full gain (solid green LED). The effect on the phone is two-fold: one, the indoor LTE signal is relatively weak, so I have to be a few feet from the indoor antenna to get an OK LTE signal, but worse, the phone switches to 3G because that signal is so much stronger (full boost). That makes the unit unusable for me. I spent a week exchanging emails and troubleshooting with WeBoost. The support is very helpful and level-2 is definitely knowledgeable. One big issue, however, is that emails to support only reach the level-1 team and the ticket that is created with all the info sent in cannot be seen by level-2. I emailed spectrum analyzer scans and those are over the head of level-1 support and when I called level-2 they couldn't access them! Come on, we're in 2016... It took two days for someone in level-1 to forward the info I sent in to a manager in L-2 and then I had to reach that person and he had a hard time accessing the info. Frustrating after having spent over an hour performing spectrum scans and typing explanations in. For reference: I used the excellent Android Advanced Signal Status app to show 3G voice signal strength and separately LTE signal strength. Holding my phone up at the antenna location up above the roof I get around: CDMA -75dB RSSI, LTE -65dB RSSI, LTE -94dB RSRP. A bandwidth test up there yields ~5-6Mbps down and 10-11Mbps up. Inside the house I get zilch. With the booster I end up with CDMA -50dB RSSI, and LTE -66dB RSSI and -89dB RSRP. That shows pretty clear that the CDMA is boosted more than LTE and thus the phone gets confused. If I lock the phone to LTE using field test mode I get 2-3Mbps down and 4-5Mbps up, but that's not a usable state (no SMS and no voice calls). In the end, I have the feeling that the device has a flaw and cannot properly deal with both LTE carriers in the 700Mhz band. I'm returning the unit and will try a surecall unit that has individual manual gain adjustment per band so if I end up having the same problem at least I can turn down 3G to match LTE. For the curious, I'm attaching a spectrum scan from 650-900 Mhz taken through the booster's directional antenna, so it's exactly what the booster sees as input. From the left you can see the AT&T downlink between 734Mhz and 744Mhz (that's the first bunch of signals hitting the green) and then right next to it the Verizon downlink from 746-756Mhz (that's the second bunch of signals). After that there's not much until it gets above 850Mhz. (BTW, these scans were taken with a $20 DVB-T USB dongle and the RTLSDR program!) I'm attaching a second scan taken of the boosted signal indoors (that's the image with the pink selection in the middle-right). This one is narrower and shows just the AT&T and Verizon downlinks. What I find curious is that the AT&T signal (on the left) is boosted more than the Verizon signal (on the right highlighted in pink) even though in the scan above both are very close in intensity. Folks at WeBoost couldn't explain that. In the end I'm giving the unit 4 stars 'cause it does work but just cannot deal with my situation (which doesn't seem that uncommon), and because there is support, and because I can easily return it within 30 days. If you are considering a booster my recommendations are: (1) do not buy any unit under any circumstance that you cannot return if it doesn't work to your satisfaction, and (2) try it out using temporary antenna mounts and cable feed-throughs as soon as possible so you have time to work with support if it doesn't just work. Update 4/24/2016: After returning this unit I purchased a SureCall Fusion4Home and so far that has worked much better. I do not know whether it boosts any better or not, but the LEDs provide more information and the manual gain adjustments have allowed me to tune 3G vs. 4G. The manual gain adjustments also make it easier to troubleshoot one band at a time and to see which bands each of my devices is actually using (for example AT&T uses 3 bands here and one of my phones only supports two of them).