No its not a noisy shell at all.
It packs nice and small.
Its nice and light yet feels very robust.
For wearing with a pack it beats the Montane hands down.
Being EVENT no pit zips are required which makes it instantly more comfortable to wear.
I find the sizing excellent....the arms are a good length, the cut is short (which I prefer) but the drop down back works well. Its an athletic cut but not restrictively so. I am 5'7, 31/32in waist, 37 chest & am wearing the small size...I can comfortably fit a midlayer underneath. Its a nice summer cut...no excess material to flap in the wind. The zips are spot on (YKK) and do not leak at all, its a simple yet effective hood, the wired peak is just right, the pockets are perfectly sized and well positioned and the hem is not 'too snug.'
I have wore it so far in strong cold winds, glorious sunshine and miserable contstant rain...its kept me dry and comfortable in them all.
For a summer jacket I thinks its got to be this years best buy...its much better than some of my more expensive shells.
Try in on in one of the local stores then buy online...its a tenner cheaper with free delivery and you get a free mug (every little helps).
Of course nothing compares to the comfort of Paramo but autumn will be here again soon enough!
Good luck!