Is it the bars, the stem or both you are interested in? Being a German company they are well popular over here but personally I can't really the see the point of an adjustable stem. You either like the bar height or you don't IMHO. They are very well made though and as light as!
Both ! Reason that I`m looking at them is that I`ve got a new 29er frame on the way and rather than having to get multipul stems to get the ride dialed, I thought this may be a good solution during the `fettling` stage until I`m happy with reach and stem angle. Will see how it goes.
