Its a bit outdated now, I realise that, but october last year (2005), I bought a bike, with quando hubs.
Two months later the stops in the freewheel did not catch the stopwheel, a few weeks later, they did not rise from the stopwheel, so my cranks kept turning, I had to keep on pedaling until stopped otherwise my gear would have been destroyed. The bike was still under guarantee so i went back to the shop, and the shopowner (very friendly guy) took off the freewheel, opened it and cleaned it and lubricated it. I don't know what kind of lube quando uses, but it looked brown, and sticky, the only difference with the brown stuff that comes out of your rear is that it did not stink that way.
Yesterday I opened the hub for inspection, it made a cracking sound, the balls on pignon side were completely worn out, after 6000 km. I changed the balls, but I am thinking of changing that hub for a reliable one. Better pay a bit more for a good hub.