It's better than Susvara for me, but treble is airier on Susvara (it floats above the music I guess), and on my stack (May/Bliss, with power conditioners) the Tungsten is delivering more detail and timbre (presumably due to higher impedance lowers the noise floor or something).
That being said, Susvara is still very very good. But Tungsten delivers more excitement and detail, but the sub bass is a tad lower than what the Susvara does naturally. But mid and upper bass is far more engaging than Susvara. Susvara is still very good though, when you get better equipment though. I've heard the Sennheiser HE-1 at CanJam and I think that my current set up can compete with the HE-1 easily if I fiddle with things like HQPlayer, and use better playback sources like iPad, RaspPI, etc. So the Susvara definitely can hold its own against high end things like the HE-1. I haven't heard things like the Aperio or Bravura, or Shangri La, or even the X9000 but I feel that the Susvara can definitely compete with most of the super high end with better equipment.
Tungsten is new, so it will be a while before people can test it with high end equipment and compare it to the super hi-end.
If you give me a short list of tracks to compare, I can give you my impressions comparing those tracks with Tungsten DS and Susvara.
Note that Tungsten SS is not as resolving as the DS, and it's a bit more of a fun, energetic sound, but that being said, the DS and SS have that similar signature of having engaging sound.