Took it out for a hill walk and a dog walk and it felt like I was lying in bed :-)
Wrapping the dog lead around the waist while the hound was off running pulled the excess in and I might get myself a simple belt to wrap around for when I'm not with the dog as although the volume is entirely what I wanted, having the ability to make it more slender when walking around is a bonus feature.
Haven't been out in the rain with it yet as, surprisingly, it refused to rain when I wanted it to!
I expect it'll be fine for my needs though. I have some high-spec waterprooves for more arduous hill walking.
Great product. I spent some time researching different brands and this one stood out more than the others for me.