It works.

Works excellently as far as sharing WhatsApp from my phone to my Mac. I’m able to send photos and videos to contacts with much more ease, directly from my computer. The downside is that both my phone and computer must be connected to wifi for the app to work on my computer, and I haven’t tried using the app when the devices are long distances from each other.

Natalee Wood about App for WhatsApp, v3.5.0