It's about as good as no Goretex Gets
Firstly it's not an expensive 4 season Goretex shell. What it is thoughtho a pretty decent lightweight downpour shell.
A couple of weeks ago whilst up above Thirlmere it did it's self proud. I had forgotten my Mera and this was all I had, but it smashed through rain, snow, gales and hail and was dry and ready to go again rapidly even in a tent.
Your arms get a bit wet, which I would think is more down to moisture build up than moisture from the outside as the hyrostatic head is pretty good on this one. My Mera also gets wet on the arms so you know.......
I got mine for £90 quid, so the challenge is, are there any better sub £100 shells on sale right now, I don't think there are