I am satisfied with the product, the time-lapse feature is okay if probably I would have wished that you could do more than 399 recordings, but previously was already in the description and you can simply start a new recording. Operation is simple and well explained in the manual, only should be said that one should put his camera in advance to individual recording, otherwise mostly 3 pictures are shot at a time here. The display and the settings are grouped into 4 Points: Delay = time before the start, Long = exposure time, Intvl = time of Intervales, N = number of passes and a sound icon with which you can turn off the sound. For long exposures and the same, this product is also, only in this case to say that the retention button located above the trigger, is often difficult to determine, and does not always work so well. In itself, a great product, only the locking knob for longer exposure is somewhat unfavorable.