I have been using this all fall and winter here in New Jersey as my main jacket because it was a mild winter.
This sweater jacket is really warm and looks really good. It feels quite substantial so I see it more as a fleece jacket and less a sweater.
Sizing is weird, I rarely fit into a M leather jacket but this M sweater jacket fits somewhat loose on me.
You should be good down to 40 degrees with this sweater jacket and then you will start to feel the wind hitting your chest. I wore this into NYC in early January and kinda regretted it because the wind was buffeting me.
I bought the black which really looks more like a very dark navy which I like.
It's a bit pricey but the quality is evident.