This is a much better than usual adapter. I love that it has two outlets as well as 2 USB charging ports. The build quality is excellent. Having a ground wire is a big improvement. And, it's good that the lights tell you it's getting power as many parts of the world have switches on each socket.
The other USB cable that it comes with is a bit short to be useful. And, you need to research what types of sockets you'll encounter on your travels to avoid taking all possibilities on any given trip. But, the fact that it has all possible plugs is a big win over needing different adapters, especially for the South Africa plug that is often its own separate adapter due to size.