The jacket is well-made and lightweight.  It will be ideal for upcoming trips I have this spring, where the weather may be a little unpredictable.
The color (navy) is tasteful (a little darker than the image online), and it fits well.
As far as size, I'm a male, 5'9" and 170 lbs, and wear a size 16-34 shirt.  I ordered an XL, and it's just the right size.  It will be plenty roomy, even if I have a sweater on, but it's not too big.