Very easy to use and offers a wide range of programming choices. Only downside, you can not leave the programming tracks recorded in the timer go off without at least one of the days of the week. Let me explain, in summer, when you do not want your programmer lights up your heating, you must cancel all the recorded programs, otherwise it will automatically trigger the tracks you have set. That said, there is no possibility to completely turn off the heat on all week, you are required to select at least one day per program, so only possibility to cut it completely erase the recorded programs! but hey, it does only once a year so the "worries" over the quality and the product price does not represent a barrier to its purchase!