I used my Magic Parka today for the first time too today

and it worked great. I did sweat a bit, though, but I must say that I was on the edge taking it along as it seemed a bit warm for the Parka. In any case, its strength seems to be in the adaptability to the conditions. With few gestures you can turn it into a rain cape extending up to handlebars and covering helmet. Else you can make it work as long coat or nearly like a sort jacket with its two-way zippers that can work over different lengths. The cloth is quite light in practical operation, without hampering the movements. You can adjust heat retention, though not quite breathability. There are reflective elements within the Parka that you can make visible or cover up if you want it look more like a regular attire.
In the past over 2/3 of year I would you use a coat supplemented by a rain cape and helmet cover. It seems that now all of this will get replaced by the single Parka.