Right Graham, the wheels are great! Mine appear to have bedded in and roll as good as my Mavics. I've got a little work to do with my riding position, but this has been my first Sportive on the Cube since purchasing it. I know what I have to do, just need to do it.
The wheels build speed very well and are super stiff, no sign of pad rubbing and I'm quite a heavy guy (though not as heavy as I used to be). They sound great too, you'll know what I mean when you ride on them and they absorb the little bumps very nicly.
In a nutshell shell, very impressed. I most resist using them as my everyday wheel.
Post your findings when yours arrive.
Cheers,
Tom