Very pleased with this product from Intermatic as well. It comes with three different color face plates but no bezel for around it (hence the creativity). The bottom plug is the z-wave controlled node. The top plug acts as a normal socket would. These plugs do not click as loud as the switches. They paired easily with my Aeon Lab Z-stick Series 2 and the should automatically be detected in the shared openzwave code.
I purchased 1 for around $30 off ebay. Here is the amazon linking: Intermatic Intouch CA3500
One consideration if replacing old sockets – this bad boy is about twice the size and has a lot of extra wire taking up room in the back. I cut about half of it off so the fit would not be as snug.