Mark V is a good bargain. It rides pretty stiff for a steel frame, but not nearly as harsh as aluminum or the really heavy older steel bikes. No other problems, either. Dropouts are nice and burly, too. My only complaint, and it was offset by the price, was that there were no fender mounts. Eh. So far it's held up to my urban fixie freeride, too. My other ride is a Gunnar Street Dog, same geometry and factory as the Milwaukee, but different tubing. With longer chainstays and a nicer tubeset, it rides much smoother than the Mark V, but I haven't ridden an Orange One.