Great design and functions. I love it. I would have few comments to make though, that should improve the product:
1-The light/helmet batteries needs retained his charge longer . I am only doing 10mns cycling a day and I need to charge it up every week-end as it only provides for around 1h30 of light (I have all the lights at 50%).
2- The internal shape does not fit neatly my head (the sides are too wide). Additional alternative thicker padding should be provided to adjust the internal size of the helmet.