Bests & Worsts Reviews from Amazon

I'm a contractor, and thought this would work great for the early 1900's homes that I remodel. Many times there are fire blocks going at angles or we just need to add something in a certain area and this devices would work great. So far, I haven't been able to get it to work, it is not recognized on my Samsung S7 Phone. I downloaded the Walabot app, glued the magnetic device to the back of my phone, I was ready to go. I have plugged in the mini usb plugs to both the Phone and Walabot the way it is described many many times. Figured it may be my phone, did an update on my phone and still nothing, the phone doesn't recognize the Walabot being plugged in. The charging cable works fine. Another strange thing happened to my phone also, and I thought it had something to do with the update that I had just completed. I use wireless chargers in my office, at home, and in my work vehicle, all of a sudden none of them are working. For the past week, I've had to manually plug in my phone to charge. Something dawned on me today, the Magnet for the Walabot was still glued to the back of my phone, so I pulled it off. Wala!!! The Wireless Charging works again, so if you do use wireless charging, I would not recommend sticking the Walabot Magnet to the back of your phone. They should have designed some sort of phone clamp, kind like what you see for Car Phone Holders, that is already permanently fixed to the Walabot device that would hold the phone while using, This is my idea, I will accept royalties. I'm not giving up, I do think once I get this device to work it should be a great asset to my business, considering I cut into walls, literally, on a daily basis and this would definitely help reduce on the guessing game of where the studs are or if there is a big drain pipe right in the area where I need to stick a box... I have contacted the Walabot company, and replied back to them, waiting on 2nd response. Keeping my fingers crossed.... Will repost with an update as soon as there's one...