Perfectly consistent with the description, tested with a Canon EOS 600D allows for super timelapses effortlessly. The seller has even send me email the leaflet in French because only the instructions provided in English appears. I would say that the only weak point is the excessive strength of the directional pad buttons from their small size. It's hard enough to handle them if we have big fingers ... but hey, it's not really serious incidentally. The HOLD / BULB function is also well appreciated for photographing events over which we have no control (fireworks for example). The backlight that lights up at will and the ability to mute are little more enjoyable.