Not many guys on them yet. The very few reviews sound very positive though.
Now are they worth it? I guess that's open to interpretation for someone chasing the clock i have not seen any numbers showing if they perfrom better on the time. A 40 is not going to hold you back and will be more than enough for anyone. Unless you are really at that point of wc riders or at that poit where you are reaching your upper limit potential and need to look to parts for the gains I don't think it will matter.
However if your a part lover and are more about feel and uniqueness well its hard to argue they are a nice looking fork.
Whether they are worth it or not I guess depends what you expect out of the fork. Personally I don't think there is enough out there on them for me to draw a conclusion on that price vs performance.
Many people are more concerned a out build quality, reliability, feel, ease of service and tuning all of which might matter more to you,