Picked one up today at my LBS. I also got a POC Trabec in from Jenson last week and it just seemed huge on my head, even though the fit was great.
I definitely prefer the Notch to the Trabec. I don't get the "rudder" either but I'll take the smaller size any day. Protection seems good; the Trabec probably has better overall protection but the Notch fits my head more securely.
Definitely a winner for me. The Trabec will be going back tomorrow.