I'm 5' 10" and 170lbs. The jacket fits me quite well in the shoulders (it's listed as raglan but the arm/shoulder seam at the front of the jacket still falls where it should). It's a bit looser in the chest than I would like, but I suppose the extra room would allow me to wear a sport coat underneath if I wanted to. The real issue is the sleeve length. I have short arms. The size 40 G9 I have is perfect because the cuffs stop the sleeves at my wrist, but that's not the case with the G10. For what it's worth, the size 40 G10 is considerably more roomy in the chest than the size 40 G9.
I ordered this from END (sold out now). Brand new with the tags. Typically retails for $550.
$345 for the coat + $10 for shipping.
More photos upon request!