Why are we even comparing RME with Denafrips' most expensive dac? A more appropriate comparison is between RME and Denafrips Ares II dac which sells for roughly $850. I have owned both and will take the Ares every time.
I have owned three Denafrips dacs to date -- started with Ares II, moved up to Pontus II, and currently own Terminator 2. I bought the Ares II for $850 and sold it for $725 after three months since I wanted to move up the chain. I then bought a used Pontus II for $1600 and believe it or not sold it for $1600 after a couple of months. There are very few brands that retain their value as well as Denafrips. The market has spoken and it says that this brand is considered excellent value and not garbage by any stretch of the imagination.