So far I'm agreeing with this. These are my first set of Beyerdynamics and even cans in price range, period. Though I've had them less than a week and they've been used less than 40 hours at this point. I don't know that I expect huge changes with more burn-in time.
But not surprisingly they're still the best sounding headphones I've had. Perhaps I just expected deeper bass for the price tag - and not being an audiophile I'm used to more bass-forward headphones (even without sub-bass) and still getting used to a flatter but clearer monitor sound.