Great! 1880 6825

Similar to its predecessor (the "Videomic" for short), it is used without battery and battery (big plus). I use it on my Canon 60D, I generally have to put the input gain maximum.
For the outside, a windscreen (DeadCat) is required, however in case of strong wind it gets complicated.

The big advantage is being able to record sound directly on the case to avoid having to synchronize the sound post-production. For the price you can not beat (former Videomic had a frame that squeaked, the new no sound).

So advisable for people who do not want to bother to do the sync sound. Note however that the recording quality is AC3 (192kbps I think) and that so far the quality of a Zoom H4 that will record 48kHz WAV (1536kbps).
Remember to set your device to save well from the microphone jack (logical but it would be stupid to forget) and especially OFF self gain (AGC).