The trigger seems very stable despite plastic case. But also do not want to try to make him fall times. One star deduction, because the operation is not soo easy and there is no English manual. Especially in the dark it it not always easy to use. If you make long recordings on the BULB function after a minute or so and you have a back readjust them. The time value in the trigger is total crap. When the trigger for example, 40 seconds displays on the camera and my cell phone stopwatch perhaps grade times 30 seconds. The price is of course not just given. Nevertheless, I am not dissatisfied with the purchase and would continue to work with it.
