I've got a 55mm set of u-shape crabon from them. Dave at LMNH said these crabon was some of the nicest rims he built.
So far using them on normal clinchers and not tubeless. But they run really smooth and with the wide rims and 35mm tyres it's so comfortable and fast on my everyday commute.
Who here has Light Bicycle rims? What is your opinion of them? Do you run them tubeless?