I'm not super fast Cuber. I'm a dad with little cube people in the house but a lot of my own cubes. The Hu Dong is nice. It's got it's own feel but end of the day I set it down and pick up my Tornado V4, my Gan12, my Moyu WV10 or my Moyu RS3 V5 Ball core. For a price of about 28 bucks and a coupon for another few bucks off I'd get the Moyu's instead.
Having said that a good review on the next Hu Dong and I'd buy another one. They've got something, it just doesn't hit the mark just yet. I think if I keep tuning it. Tighten it up, add some solid center lube it might be really nice. It's just sort of sandy and too flexible. Doesn't "click" into place like my others. So for the price it doesn't work. I'd say if the price were say $22 bucks it would be a deal but it's not there.