The positives first: the magnet on the back is just strong enough to securely hold the timer on magnetic surfaces like refrigerator or cooker hood. After all. The use of 2xAAA batteries makes sense. Operation and function, however, are atrocious. 1) The timer will not reset automatically: Once the countdown has elapsed and the timer beeps, the timer continues running in the negative range. However, with pressure to start / stop the timer does not reset (just like in normal kitchen timers of the case), but stops at the elapsed time in negative territory. To reset the timer, you must first press CLEAR and then memory, making sure that the right of the timer 3 is selected. This is confusing and takes time. Too cumbersome 2) operation: in order to set one of 3 timers, you must first press the appropriate timer button for 3 seconds. Only then can you set the hours, minutes and seconds, and finally back to confirm the timer button setting. It is easier if you would activate by briefly pressing the timer buttons to select Timer (with display of the currently selected timer) and directly with the h / min / sec buttons could set the time would be. 3) Clear deletes all 3 Timer: if one gets accidentally on the clear button, all 3 timers are cleared and the work of a new one may make. Simpler and more reliable to activate each timer by pressing the corresponding timer button so that all other buttons (Start / Stop, Clear, h / min / sec) only affect the timers currently set would. 3) The buttons react to varying degrees of pressure: unfortunately the cheap plastic has the effect that for the buttons different levels of pressure is needed. So some buttons do not respond with the slightest pressure, others. If you press too hard, the button is activated sometimes twice. 4) The beep is too low: the beeping is in each case twice in succession at short intervals and is relatively quiet. I would have liked a faster and louder beep, approximately 3 to 4 times in a row and about twice as loud.