This is also in my project queue but I don't think I'm going to start it until somewhere closer to the summer. I love Hannah's patterns and am just waiting for some yarn to be delivered (Quince and Co. Finch in Iceland) before I cast on for her Breezy cardigan! Love her patterns, so simple and full of clean lines and they go with everything in my wardrobe, WIN!
I've had my eye on the Breezy Cardigan too, but I think I'm going for the Wispy Cardigan next (I know, something with an even smaller gauge! It looks perfect for springtime, though!). Maybe I will go for the Quince and Co. yarn on that one. Good luck!