Anyone any experience of them.

I had a set years ago and they were excellent. Until the bike was nicked. They were the first hubs that you could take the cassette off with your bare hands. The machining was superbe and the anodised colour was lovley.

They must be better now as well???

I've been on the phone to Middleburn about them today.
They don't really have any at the moment as they're working on some new ones, which hopefully will be out later this year.
If they're half as good as the old ones I'll be having some! They're awesome hubs & still going strong 13 years later.