In reply to Sam L:
I've got them and used them for about 2yrs now. First thing to say is that if you go for the double treatment it is in my opinion the best dry treatment of any rope that I have currently used and that includes ice lines. Even though the ropes have been used pretty extensively now, any water still just beads off amazingly.
On the durability front though I'm less impressed. I now make a very concious effort to be kind to the ropes as they are pretty tender and really don't stand up to abuse well (one is now 3m shorter thanks to bad crampon work). Compared to ice lines, they are noticably softer and clearly don't last as well. If you're thinking of general rock cragging in the uk with these ropes I can only say look elsewhere.
When I need to replace them I think I will probably go for ice lines simply because I think they'll last that bit longer. Having said that, if I was only going to be climbing waterfall ice then in my opinion these are the ropes to choose. Also I got a deal that made the tendons much cheaper originally so I really don't regret going for them and on long walk-ins they are absolutely bliss!
One last thing to note is that I took a 15m fall on one and the soft landing due to the extra stretchiness made things reasonably pleasant!