I use this exact jacket and love it. I've been going out the past two weeks in temps ranging down to 8 degrees. It's wind proof and water proof, so even though it's not thick, you can layer underneath and stay warm. Today it was about 12 degrees F, I wore a merino wool base layer, a cotton long sleeve shirt and a cotton sweatshirt under the commuter jacket and was fine, even into a 10mph wind. Last week I wore it for a century ride where temps ranged from 8 to 30, I was out for 8 hours and stayed warm (as long as I kept moving).
And when the weather is warmer it's great, it has zippers to open up flaps under the arms (just don't forget to zipup when it rains, I did once and got soaked). And the reflectors in the jacket work real well.
I've been using mine for two seasons now and love it. Highly recommended.