The device seems quality.

One point of clarification: This device has a programmed obsolescence dates of 7 years. Why? It is not known well but I guess some integrated sensors are no longer reliable after this period ... That said it would have been good as it is specified in the description of such products which have such a limit. And I'm not talking about the battery life (A priori change after a period of 3 to 5 years ...)
For the rest, it seems good, with installation and simple commissioning and connection to the wireless network from home rather simple ... As long as we follow the instructions and it is carried out for commissioning with a device connected on the same network.
Being able to consult with a PC, smartphone or tablet detector status and the history is reassuring. Besides on notifications in case of problems.
I wish I for my part that the test mode of the device triggers an entry in the history and a test notification on the smartphone. In order to test the whole chain. But I ask for a little too sure.
In conclusion, although I found the rather expensive product in the light of basic detectors, I do not regret this purchase. And even now I look at the thermostat on the same mark ... As long as the thermostat has no also of expiration date!
For the Amazon part, packaging and delivery, it is as often perfect. Although SMS notification sounds a bit temperamental when using a relay spot. I saw the package that arrived through the site ...