Great for those cool crisp mornings we have here in Florida in winter (+/- 50 f). Good wind blocking and just the right balance between thermal and breathability.
As for the quality, nothing more to say other than "Assos" Absolutely the finest available and worth every penny. This, as well as my other Assos pieces, are my all-time favorite cycle kit wear.
I have a several Assoss jerseys and this is the first one that did not fit well. It is extremely tight across the chest.