Admittedly, I only have heard the CRBN at CanJam under less-than-ideal circumstances, but I found I had a strong preference for the HFM Shangri-la Junior both in terms of its voicing, and especially in terms of its soundstaging. The CRBN seemed to exceed it slightly in bass extension and impact, but I also detected some graininess in the upper registers of the CRBN. (I'm planning to audition the CRBN again with familiar recordings to ascertain whether the graininess was a fault of the source material.) That said, I still found the CRBN to be a very capable headphone and an engaging listen overall. I will also note that the majority of people I spoke with at CanJam who'd heard both preferred the CRBN to the Shangri-la Junior.I received my CRBNs today and have done some initial listening. One thing that isn't often mentioned is that if your ear touches the inside of the cup there is a very unpleasant sound and sensation as if the driver material inside the cup is sticking to the cup. It goes away, but if you lean against you chair and press on the outside of the cup this will happen. My initial summary is that there isn't anything so far that the Susvara doesn't do better. This is my first e-stat and I don't see, at this point, what all the fuss is about.
My advice to people who love the Susvara and want to try an eStat is to strongly consider the Shangri-la Junior. I think they are cut from similar cloth sonically, but still make an excellent complementary pair.