[StavrosK]

In my case, I simply wanted a plug where I could know what code runs on it. I love everything Sonoff makes for that exact reason, I've bought a lot of their stuff (including their wifi light switches).

The switches are especially handy because you can program them to do anything, not just switch lights on and off. For example, you can program your bedroom switch to turn off all lights with a long press. Theoretically, anyway, as I haven't yet gotten mine so I haven't tried it with that particular model in practice.