They work well and I like that they come with all 3 types of USB adapters. However, they turn off too easily for my needs. I know it should be easy, but they come loose with the slightest tug or movement of the cord. My phone often sits with the jack very close to it but not actually plugged in. I don't trust it when I transfer data. Maybe the magnet should be stronger? You definitely won't be able to hang your phone on the end of this cord. However, they are well suited for data transmission. I have a very finicky tablet that most chargers and cables hate. This cable even connected to my computer through a USB hub and allowed me to transfer files, send Android commands, and charge it with no issues. Don't move or even breathe on the cable or it will disconnect and mess up your file transfer. Cables are good for avoiding stress on the USB port, but all magnetic adapters offer this benefit. In addition, they are very easy to connect. Move the cable close to the device and the magnet will pull it into place. They match my phone cases perfectly. This is a very good design feature.