purchased this socket splitter with another product for several road trips planned this summer. Tried out this product over labor day weekend road trip. Used bout 10 hours so far. both sockets worked great. had a GPS device and a portable DVD player plugged into it throughout the trip. Also used the bottom USB port for an iPhone which needed charging. top USB port has not been used yet.item used in a toyota SUV with only one car lighter socket which is inconvenient in this day and age when multiple electronic devices are used on road trips. this splitter solved that problem. did not mount this product in the car. had no problems with inserting or removing the plug from the car socket.bout the only issue someone might have with this splitter is if there is a need for more than 2 devices which use a conventional plug to be used at the same time. product otherwise worked fine and as described.