I am very pleasantly surprised. Both the ease of assembly (There are an independent base to fix, a second part is screwed on, then the electronic part is clipped), and especially by the ease of programming. Everything is very intuitive and easy, the interface is really nice. In a little more negative parts anyway: the top part is a little hard to close, especially for the contacts are well dressed, the thermometer is not very accurate (But you can set it to a reference). At regulation no complaints, it works very well.