Certainly feels like it. There have been feature requests since product launch that seem to have gone nowhere. Sidetone, Stereo Mix, and Reducing Mic Input Gain.
Sidetone, pass the microphone input back to the listener with minimal delay. Creative has had this functionality for as long as I can remember.
Stereo Mix, an input channel of the output from the output device mixed down to stereo, 2 channels.
Reducing Mic Input Gain, the current being sent to microphones is too high. This causes signal clipping. Adjusting the volume slider does not solve the problem as that is just the output volume of the resulting signal captured.
There are likely more that I'm missing but I have had this card since it was released and have been apart of the group asking for these things since purchasing this card. These are are the items I really feel are holding back this card.
I'm looking at getting the Schiit Hel pending a few questions I've put out to people who have it, while it's not perfect it does what I consider the minimum for audio products targeted towards gamers, high quality both inputs and outputs with features that make sense.