Last year was so much about this that I waited the new version before trying it. I think that's overpriced because there are very good reflex for just a little more so you have to really think about what we want to do. At first glance, this is a bit of an oddity because it is a remote object that connects to your smartphone (for me an iPhone). Rather original in approach but good if Sony released it was that there was necessarily a request. As noted by Henry in his commentary, it is not normal not to propose a protective cover with this product, especially by buying too expensive!
We come to practice, to use it will download the application on your smartphone (Android or iOS) then connect to your WiFi phone to start taking shots. You can either use it or loose the clipper to your device.
In the end, a very technical product, I think he does gadget in the sense I am not sure to use all my outings. I use my iPhone or SLR, but why a remote goal?
Also I do not really like this is that finally autonomous, ie that it needs a battery that must be recharged, a memory card must already ... do it for his phone, his camera. A Do we really need a third device?